How on earth could that possibly be not true?
They basically stretched the DS longer than necessary by already having a second generation released on it instead of moving to the new system as usual.
But then they even went so far as to release proper sequels on it, for obvious connectivity purposes and well...for people who played the originals to be able to play their sequels.
There is just no way for another main series game to appear on the DS, as the move to 3DS is way overdue.
I really think there will be new pokemon games. Even new cards are releasing
Well I think he is right, Since the new Pokemon Mystery Dungeon will be on 3DS, there is really High Possibility for next gen or remake will be on 3DS, or Probably the next Gen will have a version for 3DS and the other version for DS, Like they did before on Pokemon Mystery Dungeon Blue/Red Rescue Team.