Laser Focus: Next attack is a guarenteed crit.
Pretty garbage move. With Gen 6 crit mechanics, this is really just Growth out of sun, only it lasts a single turn and has a minor bonus of breaking through Def/SpDef boosts. Unless there is a way to extend the turn amount (highly unlikely) this won't be used.
Throat Chop: Attack that prevents foe from using sound-based moves.
Niche at best, but it has more potential than Laser Focus. I honestly don't think the bp will be much higher than 60-80, so the real boon is the secondary effect, which can be potentially useful against users of Hyper Voice, Boomburst and No Guard Sing. Hyper Voice is really only relevant for metas where Garde doesn't get Boomburst. Boomburst is a big deal in AAA, BH, Sketchmons and a bit in MnM -- having counterplay to Boomburst users without resorting to Soundproof will be useful in those metas, but it really depends on the power and type of the attack. No Guard Sing is relevant in MnM and AAA, maybe BH and Sketchmons -- fast Sub users might be able to make use of it to prevent being slept behind a Sub.
Aurora Veil: Basically Light Screen + Reflect at the same time.
By far the best of this move trio. If it has the same damage reduction as those moves and the ability to be boosted by Light Clay, it may see use on Prankster BH/Sketchmons leads, or in other metas if the distribution is better than when I'm speculating. Exciting for all playstyles and might prompt greater use of Defog/Brick Break if it gains traction.
SPECULATION: The dominant theory is that these three moves are the signature moves of the starter evolutions. They're thematically similar and the fact that they remain in the demo when most moves are scrubbed out suggest that they'll be used in future days of the event, possibly with the official reveal of the starter evolutions. The typings, I'd guess, will match the secondary typings of the third stage starters. If these are the Spiky Shield/Mystic Fire/Water Shuriken equivalents of this game, then we may see limited distribution on other Pokemon (Maractus, Mismagius, Accelgor) but for now I'll assume they're starter-locked. If that's the case, the usage of these moves in any meta where you can't just give a mon new moves will entirely depend on the strength of the starters, which is dependent on their stats and hidden abilities. This is the most speculation I'll do, but my current theory is that the Rowlet line will have Sniper as its hidden ability because: a) it's thematic with the archer theme, b) no starter has this as their hidden ability yet and c) it combos well with Laser Focus.
Psychic Terrain: Pokemon on the ground have their Psychic moves boosted and are immune to priority.
This one's a game changer. People have dismissed the two mons that have priority blocking abilities because they might not be good enough on their own to justify using, but if Psychic Terrain has enough distribution, we could very well see mons like Alakazam setting up its team to stop priority revenge killers like Talonflame and Azumaril cold. BH, AG, AAA, MnM and Sketchmons could really appreciate this, and a ton of other metas have a big problem with priority (see: Return'd) that this move would help fix. The damage boost to Psychic moves shouldn't be overlooked either, as there are several immensely powerful Psychics that GF has added over the years.
SPECULATION: There are four island deities, with Tapu Koko being one. With this news, there are also four terrain types. Logically, each island deity will have an ability that automatically sets one of the terrains, just like Tapu Koko. Since I'm like 85% sure this is what GF will do, we can also extrapolate the types of the remaining deities: I think each of them will be part Fairy and part the type of their terrain. So Psychic/Fairy for Psychic Terrain (the one that looks like it has an open book on its head, because knowledge), Grass/Fairy for Grassy Terrain (the one with fern-like hair, because plants), and ???/Fairy for Misty Terrain, but I'm guessing Water (the one inside a shell/swordfish, because Misty Terrain is Fairy it might just lack another type, but I think Water makes sense because mist is literally just water). Assuming these abilities exist, every terrain will have the potential to be automatically set. This is huge for AAA and BH, as they can serve the same purpose as weather setters. In other metas they'll still likely be used quite a lot assuming the island deities are good and unbanned. It would be cool to see an AAA team based around a Psychic Terrain setter (with the ability) and a bunch of priority-weak teammates. Bonus points if there's a Damp Rock-eque item that extends terrain turns. I could say more, but these abilities are possibly one of the biggest shakeups for OMs if everything pans out.