Just because they didn't make a remake for Gen V doesn't mean that they won't make one at all. In fact, I'm glad that they didn't make on in Gen V as it would have been WAY too soon! And the DS games are compatible with the Hoenn games.
Since the GBA games won't be compatible with the 3DS, I think we could assume that we will see Hoenn again in Gen VI, I hope so anyway.
The Hoenn games where my favourite games as well, so I really hope that we will see the remakes soon.