Thanks. To answer you, it might be possible, but I think Zidane_2 (him again !) made a program to see the world map already. I don't remember how it worked (if you could export the models or only see it) but I may try to add this feature in the future.
Aye, Zidane_2 made a bunch of software written in Blitz3D for FFIX, I've put the sourcode here (he gave it to me a while ago) so you can grab it if you like, it just sits in there all the time anyway.
Here:
https://www.dropbox.com/sh/azf19y7homu8qnj/u-JOQibN1qUnfortunately you couldn't export from his viewer, it was only that, a viewer, it was pretty good though.
I actually have the sourcecodes to everything he ever did for FFIX, I'd be happy to share it with you, I've got his permission to share it so its not a problem, might help you a little. It's all written in Blitz3D though, so you'll probably have to get the trial version of that.
A guy on the Xentax Forums managed to make a little progress in figuring out the format so I can always provide that info too.
Eitherway this program is awesome and your aforementioned updates sound great, IX doesn't get enough love honestly, I'd love to be able to go in and HD the game with higherquality textures (and perhaps a more painterly art style Ala Bravely Default) some time.
EDIT: In the end I just threw in all the sourcecodes for all the Zidane software he gave me (basically everything he put on the forums plus a few more things he never shared because they were incomplete.