Re: FOX Shared Universe
I agree that we dont need 4F to show up on XMen movies. A short cameo by one 4f member will be fine, but more than that would mean less screentime for the actual x-men. So Id vote No.
I strongly believe that having FC cast, Original Cast and X-Force cast, Fox can easily create a huge x-men universe, having a big crossover after X-Force, combining the three casts, in case Fox wants it.
Im sure it would be really huge, if done right, and with the right storyline.
Id LOVE to see a X-Men Crossover with Original cast and appearances of Bishop, Cable, Domino, Sunspot, Gambit, Sinister, Psylocke, Archangel and more. It would be Awesome
Next Big X-Men Crossover
* 2017- X-Men: Age of Apocalypse
Edit: Forget about 2017:
Official announcement -> X-MEN: APOCALYPSE - MAY 27, 2016!!!!