What I'd like to see:
Split-screen multiplayer.
Showa Riders.
More than 4 recycled stages this time.
i would like to see major problems getting fixed first, before adding new ones, and that means the loading speed and the way custom BGM's works and then the old characters being updated
as for new riders, Sorcerer can just float around or ride his staff i guess... whereas most of the secondary riders from BW1 all have bikes(including Skull, Odin.....and Diend)
as for Eternal, he has all of the Gaia Memory available for him, ability of flight must be in one of these babies, or he can simply insert the T2 Trial memory and run really, really fast, for those who says he won't be able to ramp-boost-jump or do U turns, Beast cannot do that either in BW1, so yeah