So, I've read a lot of the Facebook comments over the past day, and since you fine people were what pointed me at them, I'm going to relay some of that back to you!
First of all, it will be about
A YEAR until we see the new DW officially hit the shelves. This estimate is from the guy sitting on the lefthand side of the video, and should be relatively accurate. Alphas and Betas before that, if I understood right and if they decide to have them public.
Well...for my model collections, it looks like a version of my beloved FSA made it through, and a version of the Chinese Federation. Wonder what's going to become of the RoF and Australian models.
I think I like the new FSA (or I guess now the UFAS) model they showed. The gun turrets are pretty sweet (really like the blast shields), and I'm glad they seem to be keeping the paddlewheel theme. The new Chinese (or Immortal Celestial)...not sure. Minus a few of the details on the hull, the battleship they previewed looks like 85% the CF battleship and 15% the EotBS heavy battleship. Will need to see more of that line before I can form an opinion.
Union of Federated American States is a weird name. Also, the South used slaves again. I'm not sure how I feel about that. The alternate history take was interesting, but just going "slavery in America never happened" was... odd? Since Stonewall is also still kicking about with his gang of plucky guerillas, we might also see some ironclad mercenary ships of the defunct Confederate Navy (though this is purely projection on my part).
EotBS and CF are now the "Celestial Empire", which also includes Korea and up to 4 more Asian nations. You can still field exclusively CF or EotBS navies, but in fluff they'll be close allies.
Republique of France is now allied with the Spanish Sovereignty and the League of Italian States in the Latin Alliance, ruled by Napoleon (The third, I think. Or maybe steampunk Zombie Napoleon I. Who knows?)
The Russian Federation and the Polish-Lithuanian Commonwealth are also one faction, though there is no word about what their "big" name is gonna be, and if any other factions are involved.
Covenant of Antarctica is now "Covenant of the Enlightened", Antarctic Division. There are different chapters of them across the world, the Antarctic one still headed by Sturgeon, the American branch lead by Dr. Carpathian (think Dr. Frankenstein with even less moral scruples and varied interest in more 'evil' science), the Russian one headed by the "Troika" (hey, I know about as much of them as you do), the Persian one headed by a Princess (which also kinda hints at Persia as a faction!), and maybe more unnamed charters.