I'd like to see:
>References to other games (Seeing a
Goteki 45 billboard on a track, for example.)
>things for older fans (rocket racer classic skin, anyone?)
>More unique frames (rather than stat changes, they have totally different handling, some even run on anti-gravity)
>Triple soundtrack (one is a more kiddy one, closer to the original, another is a set of songs like the ones in the OP
(this mix of louder is better), and the third is your own playlist, a la WipEout's custom soundtrack feature)
>A more "official racing leauge" feel to some of the tracks (think WipEout 2048)
>CUSTOM TRACKS