Yeah, I'd suggest dividing a game in "sectors" to be easier to make the job feel attainable.
F.e., divide it by cities and only move on to another one when the first one is completly remaked. Making a remake here and there will only demotivate as you'll come across "man, there's so much to do", and in the end you'll have a bunch of scenes, redone by different guys, that doesn't fit together. At least if you completly do a city, and decide to take a break (aka in modding, you wont ever touch that again aka dead project) your work wouldn't have been in vain.
If i were you i would concentrate ina small place, like redoing the inside of the shinra ship or the shinra sinked airplane.
They have few scenes, no one have touched them and i believe it would fit your style.