Final Fantasy will continue to be a mainstay in the gaming industry for as long as it is a cash crop for Square-Enix. And also, the current backstory for the name matters little, as the original post asks about a change.

What would I do? Probably nothing.

I look at the name Final Fantasy as having to deal with the fact that, aside from a few [mistaken] games (that should've never been made in the first place) and a few staples in the series (Cid, Chocobos, etc.) each game is different from the last. Stories, characters, scenary. It is the final story for that game, the fantasy.

But hey. I'ts 1:08 in the morning and I am sleepy as hell. I've also only had about 6 hours of sleep this week. Soo.. incoherence.