You think Square would allow them to add anything to it though? I think if it just got the All-Stars treatment, it'd be fine... there weren't a whole lot of glitches to fix... in fact, I can't recall any. And the graphics don't need any help either... so a port would be best. A SNES-DS port would work, you wouldn't have to make any new button arrangements, but then there's the other screen. What to do with it? I say the stats should go on one screen and the action on the other. It makes room, for one thing.
With some small alterations, a SNES-GBA port would also work, but it probably wouldn't sell as much as a SNES-DS port...