I'm hoping for a Wii remake
First, the Game Cube's graphics were better than the PS2's, and the Wii's graphics are a step up from the Cube. Yes, they are not on par with the PS3/XBox 360, but they are still far better than SNES. Everyone agrees that the PS2 FFs look amazing, therefore a FFVI remake on Wii could look even better than FFX-FFXII.
Plus, with the Wii, imagine what they could do with motion/IR controls for things like Setzer's Blitzes or Cyan's Sword Techs. Personally, I think the Wii would be the perfect choice for a remake. Also, Squenix seems to be releasing many of these recent remakes, which originally came out on Nintendo systems, on current Nintendo systems (except, of course for the PSP FFI & II), therefore, a Wii release would make sense.