Sorry if this has been mentioned before, but searching for anything with "chocobo" and "patch" in it came up with the racing fix.
How easy would it be add additional sub quests to the game, such as extra chocobos that can be breeded, like a flying one or something? This could in turn be used to get a new materia or fight a new enemy.
Normally I wouldn't ask such a noobish question, but I've seen some pretty amazing things done on this forum. If something like this is just flat out impossible, then feel free to call me an idiot and close this topic.