Some Not So Merry Mutants

This fascinating shot seems to be of the post-apocalyptic reality we saw in the first trailer, pulled back a bit to reveal that their little tribe is walled off by the body parts of a giant-sized Ant-Man. Grim! This is also what we saw Cassandra Nova walk out of earlier.
But the body of a not-so-tiny hero isn’t the real Easter egg here: it’s that this scene is littered with cameos of mutant foes from across the Fox X-Men films. We can see First Class’s Azazel (played there by Jason Flemyng), where he was an operative in Sebastian Shaw’s Hellfire Club, as well as Kelly Hu’s Lady Deathstrike from X2, the adamantium-clawed villainess who was William Stryker’s personal bodyguard. We’re not too sure, but we think one of the figures on the left could even be Ray Park’s Toad from the first X-Men film, but who knows, considering he got fried by Storm in that movie.
Given this apocalyptic area is where we saw the Allardyce version of X2 and The Last Stand’s Pyro, played once more by Aaron Stanford—and was seemingly where we saw Alioth attacking in the last trailer too—it seems like the myriad minor villains of the Fox X-Men reality have formed an alliance in the Void. Or at least variants of them from pruned realities did?