If Generation III is the norm, after the remakes. If Generation IV is the norm, before the remakes.
--Flipz, being supremely unhelpful since 1991.

In either case a new game should be coming out soon, hopefully. I would actually almost prefer RSE remakes to Grey, since I haven't done an actual runthrough of Emerald since 05-06. Plus if RSE remakes come with the old Battle Frontier that will make it better.
But I don't think the DS can handle good graphics, 649 pokemon and a proper, 7 facility battle frontier. Any remakes will probably come out on the 3DS. I'll be lucky if gray/grey manages to come out on the DS.