What do you think that will happen in Years of Future Past?

It's a toss up really. I feel a lot of these new tellings will be like Marvel's "What If" type of books where we will see alternate dimensions and see how things played out differently. I'm going to say that in this universe Rachel Grey will take on the Phoenix force and with that she will be able to take down the Sentinels.

@humanrocket: Ah! I thought that they will send back the O5 and that they will change the Mainstream Universe (because they know their future and because I don't think that Teen Jean will let Charles erase their memories). But this was simply my first thought. But they will certainly do what you said, also if is quite disappointing.

Does someone else has other thoughts about the subject? Look this: http://www.comicvine.com/articles/years-of-future-past-coming-to-marvel-in-summer-20/1100-150095/

Idk how the multiverse works but i feel like if they send the O5 back, that will just create a new alternative dimension... not change the main one... when we look back to time travel we can clearly se that the original universe where the time traveler came from still the same

Rachel already did take on the sentinels during her excalibur days. she was able to reprogram each and every sentinels making them not hurt any living creature in the planet

@trekgrey: I don't have idea, but seem all events of the next year (Years of future past, X-Men'92, Civil War 2015, Ultimate-the end, Attilian rising, Spider Man-renew your vows…) will lead to Secret War 2015. Therefore I think the question is: what will happen in Secret War 2015?

It's a bit of a toss up to be honest.

everyone will be killed by malloy or jean

Nothing really... It's just Marvel's way of showing classic stories again