Googleshng:
Hmm... the only thing that comes to mind is FF6, and at that, it's a stretch. Oh, and Mythri has quite a bit of a western flavor to it, but that's still a while off. Come to think of it, most RPG developers tend to be pretty conservative when it comes to setting. The vast majority are still generic fantasy settings, even when they try to be futuristic. Nobody ever does urban, I can only name one RPG set entirely on a space ship (which at that made the ship contain a generic fantasy setting), Western is pretty darn rare, modern real world is very rare as well, for that matter any fully civilized world is practically never done. Steampunk is actually getting surprisingly popular lately, which mixes things up a LITTLE. Heck, someone make an RPG set in ancient Rome or a reasonable facsimile and I'll give you plenty of exposure. That's a real easy one, just throw in a ton of columns and togas.

Googleshng:
Mwahaha! You and one other person fell for my red hering! This week's quote is NOT from Valkyrie Profile. Anyway though, moving on to your question, I'd say about three years or so. I mean, both are still current systems, and will be for at least a year by my math. Past that, you should still be able to find games easily for quite a while, unless your local game stores have REALLY limited shelf space. Heck, I can still find SNES and Genesis games in stores, although the selection gets a little sparse and random.

Googleshng:
Tactics Ogre Gaiden was nowhere to be seen at E3, but it is coming to the US. Suikoden 3 and Lunar 3 were also nowhere to be found, although a certain important person at a certain great translation house dropped hints similar to this one that it'll be their next project. Finally, as for Square, well, they haven't actively said they won't touch the cube, and they clearly don't have a grudge against Nintendo considering they want to remake FF4-6 on the GBA. I assume that if Nintendo takes a really huge market share, which they very well could at this point, Square will most likely jump across, probably not until FF12's out though.

Googleshng:
OK, first of all, while I normally don't point out typos (especially in light of how many I make), when someone makes the same one 5 in a row, I have to say something. Zelda. Z-E-L-D-A. Not Zeald. That said, I had a chance to check both games out at E3. Classic Zelda fun. I haven't been able to pick them up yet though, since not only was I out of town when they were released, but I am also QUITE broke. Once I can afford it though I'll be getting both. I mean, it's not like PokŽmon or anything. They just happened to release two games with the same engine at the same time. Heck, they even went the extra step of making them network together somehow, although I still don't see just how that works.

Googleshng:
Eh, nowhere in particular. I do find personally though that IRC and paper RPGs go together quite nicely. You can msg particular characters if they're the only ones who see something, chances are you know someone who has a die rolling bot, and there's a built-in diferentiator between actions and speech.