While the Final Fantasy IV remake does look quite impressive- and, should I ever shell out the money for a DS again, I'll buy it, guaranteed- I have to admit that simply remaking the old Final Fantasy games is getting old. Final Fantasy III was one thing- it had never had a stateside release. However, the DS has, if you really think about it, just as much power, if not resolution, as the N64, Ninty's last system to use dual 32-bit processors, and much better disc space, from what I've seen. So, tell me, are graphical updates enough? If it came down to it, I'd much rather see a FFVII DS remake. Why? One, because it hasn't been done, though there are still those demo videos for the PS3 floating around, and two, the gameplay is marginally less dated. There's nothing wrong with Final Fantasy IV, but even with all the rereleases of the game, it still plays the same as it did fifteen years ago, and, to be quite honest, if I'm going to play an old FF game, it's going to be either the original for my NES or Final Fantasy V on my PS1. Final Fantasy IV already plays on the DS through the GBA cartridge. Why not give us something if not new, at least not already available on the system. Chrono Trigger would look amazing on the DS, and could even have some pretty interesting DS compatibility when using the ranged attacks. Final Fantasy VII is by no means too massive to fit on a DS cartridge, and frankly wouldn't really need that much of a graphical update beyond some better character models outside of battle and texturing. Heck, they could even include all the materia that were removed from the game due to rushing development. Or, better yet, how about a brand new, DS only RPG series? Heck, you could even redo the craptastic Final Fantasy Legends games where they didn't suck, or make new games in that series and it'd be at least different.
My point is, while this game will be good, it really doesn't add anything overwhelming to the game. If you have a problem with the graphics of the old games, maybe you'll like it better, and knowing Square they'll probably throw in some fancy CG work as well, hopefully better made than the ones on the PS1 release. But if your problem is with the gameplay, I wouldn't expect that to change too much. It didn't really chance significantly from FF IV to FF IX, beyond the magic and skill acquisition gimmicks in each of the games, so I don't see why the remake should be any different.