Val cooper, Yukio, Rictor, Domino, Feral, lifeguard, Deathbird taken over by brood, Aurora, Shaman, Puck, Sasquatch, Banshee, Shatterstar and Warpath along with Technarx, Shakti, Sinister, Moonstar, Dark Beast.
Gambit is revealed as a clone of sinister with the x-factor gene of Scott Summers making him a technical third summers brother. Although since he only got an x-gene from Scott he’s more of a distant cousin at best. The genes were so heavily modified Gambit and Scott have no familial relations. It was also suggested by Clarmont that sinister may have lied.
Cable is alive and Vargas confirmed as head of XSE and the x-men’s history is publicly known. Rogue and Emma revealed as best friends. Dust hinted at being Madelyne Pryor in disguise.