Honestly, some of these concepts would most likely be better than the end result but that's typically the case with ANY concept in comparison to in game.
turning into the wandering ancient would be cool...though I think blizz should make all/most flying...and not another with wings or crazy swaying. the paladin mount was nice...though they need to make the paladin ram mounts fly for DI and reg dwarfs.
Wow, I'd change my vote if we'd get the slime kitty you ride inside of, its mount special could be hocking you up and eating you again