Yes.
Yes there will.
You mean Sonic Free Riders? Yes.
ive never played it
Sonic Riders is already out, but if you mean Sonic Free Riders then most likely Rouge will not partake in the storyline as she hasn't for the other games in the series.
after you beat a story (sonic or babylon) the tracks will have missions.
You beat heroes mode on story
No as the game does not exist.
you finish story mode with sonic,knuckles and tails and you should see story mode Babylon and on night chase,white cave and dark desert you play jet the hawk.
Cream, Rouge and Shadow: Complete Hero Story mode. Dr.Eggman: Complete Babylon Story mode. NiGHTS, AiAi and Ulala: Complete all missions in Mission mode. E-10000G: Play 20 hours total in Sonic Riders. E-10000R: Play 50 hours total in Sonic Riders. Super Sonic: Achieve a GOLD Rank on all missions in Mission Mode.
Beat story mode with the heroes and the Babylon rogues.
beat him any character in classic(not story)mode
complete all missions it doesn't have to be gold medals