I don't like considering Emerald as a remake of Ruby and Sapphire, though most people do. What I call a remake is what they did with Fire Red and Leaf Green. We couldn't call Emerald a sequel either because there are minor changes, which basically make Emerald like the third version which came out a bit later than R&S.
Having this in mind, if we've already had a remake of the old Green/Red games (and we have too of Gold/Silver), I'd totally prefer a remake of the Gen III.
Besides, though indirectly, we've had kind of a "second remake" of Kanto in HG/SS... So please, no more Kanto, let's give Hoenn a try.