Man, it sure feels good, doesnt it?
Ever since tera getting yeeted out of the tier, the game now feels more interactive between both players, as they go back and forth throughout the game, whereas previously with tera one felt it was walking on eggshells trying to force their tera out, and pray you dont get obliterated so that your plays can go trough. And with the returning of several mons to the tier, most of us are feeling like kids going to a Toys R Us, with so many toys to play with. And while playing with the "new toys" (Melmetal my beloved) I also began analyzing the other mons in the tier, and how their current positions are likely to shift for the better or worse. So here are my predicting rise and drops for the meta, now what im saying isnt 100% set in stone, so take it with a grain of salt.
Rises:
Previously magnezone simply wasn't capable of doing it's job properly, which was to trap and eliminate steels, as they can simply terastalize and get away scot free from magnezone. Sure, you could say that on paper Magnezone was useful by forcing an early tera on the opponent, but in practice, it never added to much of anything, and was more or less dead weight on a team. Now with tera gone, Magnezone can finally do what it does best, eliminating metal birds, red ants, and whatever plant Ferrothorn is based on... for it's teammates. It also has the potential to trap newcomers like Melmetal and Kingambit, do it might probably have to adapt a diferent set for those two. But as long as a steels have a role, so does Mag.
With the reintroduction of Gholendo, many players are very likely to start utilizing hazard staking teams more commonly, wheather its stall, balance or hyper offense teams. And defoggers that can pose a treat to Gholdengo are going to be welcomed, such as Moltres, with its good typing amd bulk letting it scare Gholdengo off the field with Flamethower or Mystical Fire. Once dengo leaves it can the proceed to clean them up no problem. It can also do well against the likes of Melmetal and Kingambit, do it has to be aware of potential Knock Off of the latter.
Balanced teams are finally making a comeback with the removal of Terastalization. Sure, they were capable os utilizing tera to great effect and all, but it was never the style that enjoyed tera the most, that honor went to offense teams. And with Clefable being a forefront center piece of many balanced teams, it is bound to see high usage on these structures. Especially against teams that heavily rely on hazard stacking to make progress, allowing to make the most of its amazing movepool.
Great Tusk is already and excellent mon, but with Kingambit returning to the scene, players are looking for bulky fighters that can take it, bulky fighters like Great Tusk. Tusk can also handle some variants of Gholdengo and get rid of hazards still, do it might consider starting to run more Knock Off now on its moveset, seeing the potential of removing boots from the opponents team, making it also a great Gholdengo ally.
With the uprise of balance teams, Alomomola + Melmetal has started strong as a decent balanced core. With Melmetal being an amazing wallbreaker, with great bulk and typing, of which Alomomola can come in and heal off back to almost full, making for its lack of reliable healing, and allowing to bash the opponent once again. It can also pair well with Kingambit and Zamazenta, providing them more longevity and thus more opportunities to smack the opponent. Alomomola was already decent beforehand in some teams, but it was more of a niche mon, since the meta was more offensively oriented, but now that the waves are more calmed, mola is more likely to see a splash.
With introduction of Gholdengo to the tier, players are experimenting with more hazard stacking teams, and what mon spits out hazard more than Glimmora? (If anyone has a better answer, let me know). Glimmora + Gholdengo is very likely going to be a new route hyper offense teams are going to move on to. Do with tera no longer at their disposal, giving how they were one of the main culprits for its ban, they can be more manageable, but still a solid structure for those teams.
This one is pretty much the same as Glimmora, Gholdengo + Hazards go together like peanut butter and jelly. Hsam can also potentially 1v1 opposing Gholdengo, as it wouldn't wanna switch into a Ceaseless Edge.
Pretty much the same as what I've discuss with Glimmora and Hisuian Samurott, but this one is for Webs Hyper Offense teams. The potentially high amount of Knock offs, including from the likes of Kingambit, can also be a solid benefit to it as well.
Drops:
Being knowed as what we liked to call a 'Tera Hog', it makes sense why Skeledirge is falling off in this meta. The introuction of Dragapult, Kingambit and Gholdengo are anything but kind to it as well. It does however still have its niche use cases, as its good bulk and typing could come up in some scenarios, as it can still handle the likes of Volcarona and some variants of Iron Valiant. It is also a solid answer to Zamazenta and Melmetal, which can be nice to have a backup for.
Much like Skeledirge, Garganacl also heavily relied on Terastalization ro make up for its short comings in its mediocre typing. And out of the two, Garganacl likely has the tougher time of them, as it is exploitable by the new additions in Kingambit, Melmetal and Zamazenta. It does have a positive matchup into Dragapult, so it does have its applications, and Salt Cure is still a move that can't be ignored.
Corviknight in itself isnt terrible, sure it may be passive, but it is still useful for its great typing and ability to defog. Oh wait, Gholdengo is back in the tier? Ok, nvm, Corviknight is now a terrible defogger, as it simply gets blanked entirely by Gholdengo. At best, it's simply going to pivot into a mon that can handle Gholdengo. And is that wasn't enough, the likes of Moltres and Magnezone are likely to see an upsurge, 2 of which Corviknight matches up poorly against. It is still decent in some scenarios, but it will most likely not provide much value in this new environment.
Iron Crown was previously one of the best mons in the tier, its good bulk, decent typing, and movepool allowed it to function as either an Assault Vest pivot, or even as wincondition. So why is it dropping? Simple, the return of Kingambit, who just beats it 1v1. Its standard Assault Vest is simply not going to work anymore, unless it gets pursuitted to death. However, it does have Focus Blast, meaning that Kingambit cant just switch in without any worries, but you will still have to be careful when playing against it.
Much like Iron Crown, Glowking is terrified at the prospect of facing Kingambit, even if it can punish it on the switch with Flamethower. At most, its going to just pivot around it with Chilly Reception every time it swithes in, and very unlikely will it get to fire off a Future Sight. Sure it did had its pursuitters like Mega Ttar and Weavile, but 1, tera was allowed meaning that it was able to escape in a pinch, and 2, they werent seen as common. Kingambit is very likely to see a ton of play to handle teams loading on Gholdengo and/or Dragapult.
When Kingambit was previously in Nd Ou, Mega Ttar was almost nowhere to be seen, as it was pretty outclassed as a Pursuitter. And well... Kingambit has returned to ND OU, as well as Zamazenta and Gholdengo, of which it doesn't do so hot against. However, make no mistake, Mega Ttar is still an excellent pokemon, as its got a much great bulk, better speed, and better offensive typing. It also gained Knock Off after the 2nd DLC, something it previously didnt had when Kingambit was around, so it has justification to be used. It also matches up greatly into Dragapult, as it can sponge a hit with ease, and then pursuit it. And of course, it's Sand Stream ability can always have use, either on a dedicated Sand team, or on Balance structures.
Ok, I'm honestly surprised how this thing is still having the OU label for THIS long. Mega Banette has had a wild history in the ND OU metagame. From gimmick, to being actually useful, to now barely having a niche. However this might perhaps be its time to drop to ND UU, as Dragapult, Kingambit, and Gholdengo have all been reintroduced, and all 3 absolutrly destroy Mega Banette with ease. Sure, it could Destiny Bond and take it out, maybe, but at that point your better off usong a better mon to handle the threat. Trouble with Dragapult?, use Kingambit. Kingambit is your issue?, use Zamazenta or Great Tusk. There isn't much of a reasoning to use Mega Banette anymore, plain and simple.
Anyways, these are my predictions, and I would like here some of yours.
do be kinda funny and maybe a little silly still. I think we should give it some time before coming to hard conclusions on it, but it's the one drop that may be a tiny bit questionable.
and 
being back makes setting trick room an absolute nightmare...
as a great Pokemon under trick room that can deal with Kingambit nicely.
is not a gimmick in my opinion, not anymore than trick room in general. When paired with 
can avoid an Iron Head Flinch and set room and either die to Sucker Punch or Misty Explosion for momentum. 
is something that is so absurdly bulky that even max power Kingambit barely OHKOs it back. Not ideal since it is obviously a psychic type but worth pointing out.
@ Clear Amulet 
/ Lum Berry 
@ Heavy-Duty Boots 
@ Galladite 
