Every competitive game worth a shit gets revisions to address balancing. Try as they might, the developers simply cannot tune everything perfectly on their first try. They rely on the community to really break down the game and find all the imbalances and from there work on their next version. If they were to make VF6, it would need to play completely different from VF5, and then they're back to square one.
Anyway, I just want two things out of a console port. A return of the VF4 Evo style training mode and a far more robust online mode. VF5 played really well online but it was as barebones as possible.