Well it has come out with a trailer so you can see what the movie will be about:
MySpaceTV Videos: STEP UP 2 THE STREETS Trailer by Step Up 2
But the description listed from the official MySpace site says:
The follow up to the 2006 smash hit, Step Up, STEP UP 2 THE STREETS follows a rebellious street dancer Andie (Briana Evigan) as she embarks on a journey to fit in at the elite Maryland School of the Arts, where she meets Chase (Robert Hoffman), the school's hottest dancer. Featuring the directorial debut of Jon M. Chu, STEP UP 2 THE STREETS reunites much of the production team behind the original film, including the cutting-edge hip-hop choreographer Jamal Sims, who is joined this time by choreographers Hi-Hat ("hip-hop's high diva of dance") and Dave Scott ("Stomp the Yard").