Well we know already that the yellow chocobos can 'glide' and that Tabata commented on the Black Chocobos saying "fans should be able to figure out what black chocobos can do" which is that they're able to fly in past entries.
You mention the gliding that the yellow chocobos can do, and I think that gliding plus the drifting is going to make controlling the chocobos extremely fun. Not only that, I wonder how many secret areas can only be achieved by using a Chocobo to glide across something Noctis couldn't normally get across.
Likes:
Rin and ChingleeTribal