Doesn't feel like its warranted to me. If Ruby and Saphire can get remade, does that mean Red and Blue/Green can get remade again? After all their remakes are on par with Ruby and Saphire (same system, same graphics, same engine). At a certain point, remakes need to stop. The GBA generation barely looks outdated compared to Diamond and Pearl, and I don't think we need remakes of those either.
If however Nintendo wanted to release them for the 3DS virtual console with some sort of new feature built in so you can trade the pokemon you get in those games to the DS/future 3DS pokemon games you have in your system, then I would be all for that.