2. The Fantastic (More Than) Four
There were a lot of ridiculously dumb moments in the previous two Fantastic Four movies, but one that actively messed with characters themselves (rather than just treating audiences with contempt) was the rewriting of the origin story to have Victor von Doom present on the fateful space mission, transformed in a supervillain by the same solar storm as the heroes. The trailer hints at
the presence of Doom on an earlier version of the characters' mission (if it's following Ultimate, then it's a journey to another dimension), meaning he's not going to be there. But don't expect it to just be the Four involved in whatever accident occurs - the shot of them all in space-y suits has more than four test subjects. There's nothing inherently wrong with adapting the origin story to modern science (getting powers as diverse as stretchy limbs and rock skin from cosmic rays is very sixties), but shifting it just so they're four people out of many makes the whole team-making event a little less exciting.