As for the whole war thing, I think it's stupid. One does not simply go to the ridiculous lengths of creating a joint anti-terrorist organization with a rival superpower, only to ignore its investigations and start wars over rumors. That's just plain stupid.
It has happened before in history of Earth and humanity...
I for one would gladly see both Imp-Fed long continuous war (something in lines of Power Play and BGS now, but in much more simple "conquer and win or lose it"-form), and Thargoid invasions to continue.
There is always a place for your ships and modules even if other side would conquer another, and be hostile to CMDR, I doubt there would be much if any problematic issues for any certain player(s).
And there will always be Alliance, exploration and Colonia space, also
