Unfortunately, the early rating doesn’t describe any new features.
“This is a puzzle game in which players must line up a device and shoot out bubbles in an attempt to match three or more same-colored bubbles. Players’ goal is to clear the entire play area by bursting these matching bubble groups.”
That sums up every Bust-A-Move game. Will this have online play? Probably. Downloadable puzzles? The WiiWare game, Bust-A-Move Plus!, does so I’m expecting them.