oh right the recent minitour. I think it was a really good platform to try this metagame out. There were really cool strategies I've seen, including Weakness Policy Golem, Combusken, Dual Screens Meowstic-M, Belly Drum Slurpuff (which is more legit than you'd think), etc.
What I noticed throughout the tour is a lot of Sawk and Skuntank. Like DTC said in the op, they got pretty big buffs in Knock Off and the Steel nerf respectively. I battled DTC in round 1 and nearly got wrecked by his offensive trio of Skuntank + Jynx + Regice. My Metang was Pursuit trapped by Skunk and eventually it nearly resulted in a Jynx sweep, but fortunately I was able to pull off a win. What I'm saying is: Skuntank has more team options than before, be it with Primeape or Jynx. Similarly, Metang is going to be forced to drop an important move (most likely Bullet Punch) and use Earthquake if it doesn't want to get trapped by Skunk, but still has to undergo the Pursuit/Sucker Punch mindgames we all know and learned to despise. In round 2 I simply got rid of Metang and threw on Probopass, and subsequently never saw anyone use Metang in the tour, just so I could avoid Skunk troubles. It's likely going to be this way, with Metang dropping in usage in favour of Probopass. Sawk is really troublesome now, but since everyone has already talked about it I won't emphasize anymore
I'll touch on a few of those Pokemon I mentioned earlier. Weakness Policy Golem works really well thanks to Sturdy, priority, and most of all, the tendency for everyone to hit it with super effective moves. I mean, it has a huge number of weakness, all of which are extremely common in NU. And Golem being the troublesome little shit it is, everyone wants to kill it ASAP. In my battle vs FLCL, I was forced into a really tight spot by Weakness Policy Golem after I tried to kill it, and it ended up causing me some trouble as I had to predict around it, because priority and 2 powerful moves with near perfect coverage is a handful.
Meowstic-M is probably the new best Dual Screen user, and will probably be the backbone of hyper offense in XY NU. Prankster screens is really amazing and makes up for its relative lack of bulk, and can easily hop in multiple times each game to reset the screens. Thunder Wave is also an amazing support move that slows down huge offensive threats, meaning that if your Meowstic is alive, things like Scarf Jynx or Tauros need to beware of TWave stopping their sweep. Unfortunately it doesn't have a way to being in sweepers safely unlike Gardevoir, but let's face it, getting a guaranteed screen off in an emergency is great for any setup sweeper or offensive team for that matter.
Belly Drum Slurpuff is just underrated IMO. I nearly got swept by it vs Metal Sonic but fortunately Aftermath from Skunk saved me. With Kanga gone and Metang usage dropping, Slurpuff isn't very afraid of priority moves anymore (it's bulky enough to live Sucker Punches and weaker priority). Metal Sonic used Sitrus Berry with Play Rough, Return and Belly Drum. While it can't defeat Steel-types, they're 1) easy to wear down especially with Steel nerf and 2) not very common to begin with, so this 2-move coverage is actually good enough to sweep.
I'll probably post my other thoughts soon when they enter my head. Meanwhile here are the replays of my matches in the minitour for your viewing pleasure, and I hope everyone else posts replays too so we get to know this meta better!
http://replay.pokemonshowdown.com/fusx-xynupreview-81 vs DTC
http://replay.pokemonshowdown.com/fusx-xynupreview-65 vs Haund
http://replay.pokemonshowdown.com/fusx-xynupreview-84 vs FLCL
Unfortunately I didn't save my battle vs Metal Sonic so y'all can't see the workings of Meowstic and Slurpuff