Rock Band and Battle of the Bands could make it if they have even remotely the same success as GH3.
High School Musical (shudder) will most likely do it, the PS2 version blew past 1 million a long time ago.
There's no updated Others data on Monkey Ball but it still hovers in the European top charts so it could be another SatSR.
I'm not sure about GH Aerosmith, no idea how a band-specific GH will sell. Most likely won't have the same success as GH3.
DQS could make it. Still has some life left in America, and DQ8 sold better in European which leads me to believe that Dragon Quest is more popular there and could make the rest of the way to 1m.
Can't think of anything else...
Tag - "No trolling on my watch!"








