I think it would be cool to see prequel quests, basically 1.0 scenario quests + cutscenes in ARR engine :v, and the final quest ends with End of an Era video

Perhaps put requirement that you have to beat 2.0 story first, so that new players won't get confused.

I never played 1.0, but I'm guessing the only new asset + boss fight mechanic they need to create is "Nael Van Darnus". Everything else should already be in ARR.. even "young Minfilia"

Hopefully one day.. :/