That's exactly why I dont want it.
I think it would do a disservice to both franchises, universes, whatever to combine them.
X-Men has so much material to work with in terms of prequels, spin offs, TV shows (although I dont know the deal with that), etc.
I'll go with another unpopular opinion:
-I want a full X-Men reboot soon. Ive mentioned it before. And yes I know DOFP technically is a "reboot" but I mean a full reboot, new actors (although some of them will be hard to replace I think), new director, new everything.
I think theyve gotten a pretty good run out of the franchise. Out of 7 movies I've thought 5 of the movies were good, 2 of them great and if it wasn't for where it is: Jackman leaving, Lawrence leaving (although Ive never cared for her Mystique that much), allegedly Fass and McAvoy's contracts being up after Apocalypse, and Singer talking how Apocalypse is the culmination of a trilogy it just feels right to end it now and start fresh.
The only thing is the Deadpool movie.