Dallas is Expanded again this season, so I'm at least invested enough to keep up with whats going on competitively this year (otherwise, I'd bring a troll deck to Dallas if it was Standard).
Factoring in Unified Minds, here's where I think the meta sits, no particular order:
Turbo Dark
Archie's Blastoise
PikaRom
Shock Lock
ZoroGarb
I think Hitmonchan/Wobb isn't ever going to be a tier-1 deck. It's only good because a lot of the top decks have Weakness to Fighting and the fact that it can guarantee a Sledgehammer turn against most of them. It's really an 'anti-meta' deck with a lot of good matchups. But I see it sliding back when Cosmic Eclipse releases and Reshiram & Zekrom-GX waltz into the format.
Trevenant. It has shown great results since Tag Team was released, but that's honestly because Trevenant was like the perfect meta call for Toronto. The other factor is that, Expanded events near the end of the season, the results get weird because not nearly as many players are chasing for points (either they have invite or have given up) and you have a lot more players running weird stuff they might not play if they were making a serious run. So yes, Trevenant DID make top 8 in the last stretch of Regionals, I don't think the meta was stong enough to push it back.
That said, with Greninja & Zoroark-GX (Turbo Dark) threatening virtually everything (it's basically what Rayquaza-GX decks want to be) in the tier-1 slot--and the fact that it holds weakness over Trevevant, I think it's enough to push Trevenant far down the ladder.
Also consider that TWO of it's matchups are HEAVILLY dependent on who wins the coin flip (Archies and Zoro Garb). If Trev wins the coin flip, it'll usually win. It CAN naturally beat Shock Lock, as we saw at 2 Regionals, but there's not enough Shock Lock to warrant using Trevevant. And it has favorable matchups against PikaRom.
Unless you truly believe you are a super skilled Trevevant player and can run hotter than the sun, it seems like it can donk anything tier-2/rogue and below, but manage to lose to most of the tier-1. Which makes it a terrible pick in a regional setting once Turbo Dark startsmaking more Top 8 Cup appearances.
As far as Archies goes. It doesn't gain much. IT's biggest boon is Mewtwo & Mew-GX, to which it can copy a discarded Kingdra-GX's Hydro Pump and tackle Tag Teams effectively, something that has been holding Archies back since Tag Team.
Does this make Archie's an even better tier-1 deck? I don't think it makes it better, but I don't think Archie's is in any danger of losing it's footing in the tiers. At least, for now. I'd honestly pay attention to Cup results for the next month (UNM legal Expanded Cups) and see what starts doing good.
The only deck I'm not 100% on is ZoroGarb. It's the most competent and viable Zoroark deck going into an unknown meta like a Regional, but it's damage output isn't where it should be. That said, if any of the top 5 decks I mentioned are in any danger of losing tier-1 status. At the risk of sounding controversial, it's Zoro Garb. At least, where I'm currently sitting.
I did see a Zoroark-GX deck make top 8 that utilized the Electric Aura Jolteon and Electropowers (allowing a Zoroark-GX to be Lightning type and use Electropowers to OHKO Tag Teams. Brilliant stuff).