Celever
i am town
Nono, FireRed and LeafGreen were released everywhere at some point in 2004. That's definitely before generation IV.Um... you're welcome.
But yeah, I would love to see Sinnoh be remade. Of course, I feel Sinnoh doesn't even really need to be remade since it's already pretty good, but it would be a cool thing for them to do. Released in 2006 in Japan and 2007 everywhere else besides Korea, the games are about 9 to 10 years old. Nearly a decade! Red and Blue remakes were out in less than that.
There is lots of demand for a remake of generation IV and, despite being released after FRLG, more need for one too. The game engine used in those games is terrible as they were released not too long after the DS had first being released and game devs didn't know how to optimise DS games at that point. This means that the games are sluggish and slow, and this overshadows other actually very good things which the games do. The regions are already quite beautiful IMO, and in 3D this could only be accelerated, and unlike Gen VI the gym leaders, champion, and even some E4 (mainly Flint) have genuine personalities displayed during the game. Not to mention Looker will go back to having a notable role if they choose to include him, which given that he's been brought back in every game since, would surprise me if they didn't incorporate him into the series. It would also be well timed, as a lot of people who played it as kids will now be older and either have incomes or some kind of way to get money in order to buy the games if they do want a nostalgia fix and might return to the series accordingly. No Gen IV remakes in Gen VII would be a true shame and I don't think it's something that's going to happen.
However, we're looking too far into the future, really. Gen VI hasn't ended yet, and then we've got the first games of Gen VII to think about too. Those two sets of games will take 2-3 years to come out, so the Gen IV remakes, which will also need development time, probably won't be coming to us before 2019 or 2020. Talking about it now is quite hasty. :x