I prefer the two universes separate. AVP works well for books, comics, and video games, but when the Predator meets the Xenomorph it feels like a bear wrestling a serpent hound; diminishing both creatures. What makes the Aliens terrifying is no advanced technological help, that humans are vulnerable to them, but add a plasmacasting warrior with a mini nuke and its less scary.
In the same way The Predator becomes either a ragdoll the Xeno slays with ease or omnipotent killing Xenos like flies.
I personally would be fine with no more AVP films. However, since it is inevitable, Disney will not be able to resist, I think a one season series might be good because you could delve into Pred culture in some depth, and make the Xenos more forboding; less microwaved Xenos, time for them to incubate and build on the horror.
