I don't know what the official RPGWW stance on MUDs is, but a friend of mine introduced me to this crazy Unofficial Squaresoft MUD, in which you can access FF3/5/7/Chrono Trigger/Secret of Mana (that's all so far, but apparently they plan to add more)-based worlds and level up your character with a FFT-inspired job/ability system. I started playing a little, not nearly enough to give it a fair review, as it will probably take me a while to really get into the meat of the game, but it seemed noteworthy and at least worth a look. There seem to be a lot of rules and commands and stuff, and as I am not a regular MUD-er it all confused me at first, but if you're into that kinda stuff then check it out.
The host is sandwich.net and the port is 9000.