This is going to be a relatively short blog and just my two cents on the matter.
So after AvX 8 and a bit of talking with another user, I got to thinking as my original ideas of who dies at the end of this event seem less and less accurate. I've said from the beginning that Emma and Scott won't die but as the event went on it seemed to changed, at least for Emma. Still, I have no bad vibes about either getting shoved into comic limbo so I will stick to it. My first impression was Protector or Iron Fist, Then we get news of a major character passing so there goes Protector. Then I thought Rulk, though he isn't necessarily a major character either. Then I thought Luke Cage, but it just wouldn't "big" enough IMO. Then I thought maybe Black Panther? Well with recent events with him, it shot my idea out of the water. Then someone mentioned a wildcard.
With the sudden involvement of good ole Chuck and him telling Cyclops he loves him and he will stop him, I began to think this makes sense. After all the interviews we have gotten we know it is supposed to be a major character. Now I know some of you may be like "Well, GS. Xavier hasn't been relevant for some time." Well, that is true. However, Xavier is a very influential character in the Marvel Universe and mythos and many people respect him and his ideals. Say after this is all done he harnesses the Phoenix Force and or dies. We get Cyclops, who realizes the man who was like a father to him just passed protecting him from a force that also ravaged another one of his students in Jean Grey for some time. After walking in the X-Men's shoes, Cap is supposed to feel like that the Uncanny Avengers will relieve tension of the mutants and everything will be hunky dory. If Xavier dies, Cap will know how mutants felt and what Xavier was exactly fighting for and the unification of both teams could be a symbol of Xavier's dream finally coming to fruition with mutants and humans on the same team (not counting the few like Wolverine, Beast and Storm's brief time drooling on the floor.). People love the Avengers but hate and fear the X-Men despite all that the X-Men do. Putting the two should definitely put the mutants in a new light in the terms of the public and it could be the symbol that after so many years, Xavier's dream was possible.
(None of this blog excludes the possibilities of Rulk, Iron Fist, Luke Cage, Hope etc from dying.)