Considering the fact that we've seen most of these characters happy and alive in the future-based epilogue of Days of Future Past, there is zero reason to fear for their safety in the 1983 of X-Men: Apocalypse. Wolverine 'snapped back' to the new future that he had helped create at the end of DoFP, meaning that everything that now happened between 1973 and 2023, happened. Including this new tussle with Apocalypse. So, savvy audience members should be able to realise that the only characters technically in mortal danger are Mystique, Nightcrawler, Jubilee, Quicksilver, Archangel, Psylocke and Magneto. That's still a healthy amount of danger, but when we know the main characters of Jean, Hank, Scott, Ororo and the Professor all survive, it removes half the danger of the movie, making for a slightly lacklustre experience. There's no tension. Were Kinberg and Singer to turn around and kill off one of those main characters in X-Men: Apocalypse, it would completely negate the story that they already told with Days of Future Past, which would be extremely frustrating. Why should we bother turning up for these movies at all, if the filmmakers aren't going to stick to plot points that they originally give us as gospel?
Cinephile since 1993, aged 4, when he saw his very first film in the cinema - Jurassic Park - which is also evidence of damn fine parenting. World champion at Six Degrees of Separation. Lender of DVDs to cheap mates. Connoisseur of Marvel Comics and its Cinematic Universe.