It'd be nice, but I don't see them doing that any time soon, if not at all. RB have remakes, and though the remakes obviously aren't the same as playing the original, it would still feel redundant. Though one might say that about Ocarina of Time. You have the original, Collector's Edition/Master Quest, a VC version, and the remake on 3DS. So with that in mind, it's possible...but I think it's very unlikely since RB, imo, don't have the groundbreaking qualities OoT had. Plus those are obviously two very different games.
As far as trading and transferring to gen V would go, I don't see a big deal with linking up with other RB 3DS players, however because I doubt they'd change the stat system just for a VC version, transferring to gen V would be impossible. So that's definitely out.
Basically, it'd be nice to see it, for those that hate FRLG and lost their original copies or what have you, but tbh if you really, really want to play it, an emulator and ROMs are a Google search away.