This will be a gen 4 game MN >_> They're just going about things differently. If you noticed, there's a pattern for every gen. Every gen is released on a new handheld by Nintendo.
R/G/B/Y: Game Boy(Yellow's the only exception, but it's in a class of it's own anyway >_>)
G/S/C: Game Boy Colour
Ru/Sa/E/Fr/Lg: Game Boy Advance
D/P/Pt/Hg/Ss: Nintendo DS.
This is a Gen 4 game, though I wouldn't doubt maybe hints to new Pokemon in after story stuff possibly... I dunno. And if this is not a remake, there'll be a
lot of angry people, so I doubt Nintendo would do that and have them boycott Hg/Ss.
Oh, and some of those people you mentioned don't have Wi-Fi, like RP...
