I didn't read every page, but I read on Bulbapedia that there will be a special anouncement for a pokemon game this month. It was from a japanese Tv Show, and when they said there was going to be a new game announcement, the screen showed a Gold and Silver pokeball. Think of the obvious facts! If there is data in pokemon diamond and pearl for Johto, and the last generation's games (ruby and sapphire) had data for Kanto (for the R/G remakes), there is definately a Gold/Silver remake coming...
What I think is funny, I grew up playing Ruby and Sapphire first (then I played R/B/Y and G/S/C), and now, In a couple of years, they will be remade on the next ridiculous handheld console nintendo comes up with (which I will most likely buy).
EDIT: Seems I was bit too late :P