2) The X-Men Visit The MCU
The Crossover: We’ve suggested some Fox/Marvel crossovers before, but this is the big one we really want to happen: for the X-Men to crossover into the MCU and meet the Avengers. We’re not even suggesting a permanent shift of universes, just a temporary visit for a hugely exciting once-in-a-lifetime event movie.
Likelihood – 8/10: The big plus for this one is that the X-Men franchise has already played with time travel and alternate continuities, so it wouldn’t be too much of a stretch for Xavier’s team to travel to another reality – the MCU.
Likewise, Marvel just introduced the idea of the multiverse in Doctor Strange. Creatively, this one gets a thumb’s up – it would just depend on whether an agreement could be met behind the scenes. Still, we like to think that such a thing is possible.