Yep... back in the day of the N64, Square did do a bit of work trying to bring their next FF title to the system... the tests looked pretty good, but didn't function too well as a game likely.
But, SquareEnix will do whatever is most economically viable. Distinct titles on different systems keep competition between their titles on each system down. Whoever has the best system gets the numbered titles. The runners up get the offshoot freaky titles such as the depressed Tactics of the GBA.