Some websites are saying the X-Men will appear in MCU movies two years from now. Perhaps we'll see teasers before then. Especially if Dark Phoenix does good at the box office, we'll see Phoenix in the X-Men office soon enough, especially down the road as Phoenix/Jean appears in MCU.
Aaron's crap is over and cannot be put in the movies and really isn't viable for the company as a whole. It's just ridiculous fan fiction which never should have gotten through editorial.
Clearly certain idiots didn't understand the significant of the original Phoenix and Dark Phoenix sagas. And also, to constantly rip off something without coming up with your own original stuff? Lame, lame, lame.