We already know she'll be a part of the Westchester "country" of Battleworld via the title "X-Men '92," however she'll have her classic powers back again.
We've heard that Battleworld is replacing all of Earth-616, Ultimate Universe, etc., which may mean the end of Vampire Jubilee if X-Men '92 Jubilee is the only Jubilee left when worlds/universes collide.
A selfish desire on my part is to then see her join a new Generation X ongoing... ;P