Mist Continent to Outer Continent for part one. They’ll beef up the escape sequence in Fossil Roo as the end of the first game.

They’ll add a bunch of filler and make Terra its own game.

Part three will be the endgame + the optional open world stuff before the endgame.

They’ll fit a part for by carving something else up too.

It’ll be a shame, too, since FF9 has a fun story and characters.