Step Up 4Ever Movie Plot

Summit is promoting the movie Step Up 4Ever at the 2010 American Film Market, and we get to see a teaser poster:
(Click on the poster to enlarge.)
Even more interesting is this plot synopsis of Step Up 4Ever:

Plot:
"The newest 3D installment of the smash hit Step Up franchise brings the eye-popping dance moves, drama and romance that have made the series a global sensation to Miami, Florida. This highly anticipated sequel from the producers of Step Up, Step Up 2: The Streets, and Step Up 3D, takes the franchise to a spectacular new level. With a sexy young cast, red-hot soundtrack and dazzling new choreography, Step Up 4Ever delivers more heart-pumping excitement than ever as the world's best dancers compete to be crowned the kings and queens of Miami’s sizzling dance scene."

So it's confirmed: there's a world dance competition ahead for us! What countries will we see? Is there any local street dance style that should figure in Step Up 4Ever?

Update - Summit Entertainment has released a new plot description:

New Plot synopsis:
"STEP UP 4 is the next installment in the worldwide smash Step Up franchise, which sets the dancing against the vibrant backdrop of Miami. Emily, the daughter of a wealthy businessman, arrives in Miami with aspirations of becoming a professional dancer, but soon falls in love with Sean, a young man who leads a dance crew in elaborate, cutting-edge flash mobs. The crew, called the MOB, strives to win a contest for a major sponsorship opportunity, but soon Emily's father threatens to develop the MOB's historic neighborhood and displace thousands of people. Emily must band together with Sean and the MOB to turn their performance mobs into protest mobs, and risk losing their dreams to fight for a greater cause."

Did they abandon the world competition thing?
:?