HP game release in fall 2010

It was announced recently, when Electronic Arts released their release schedule for 2010 that a new Harry Potter game, currently under the title of "Harry Potter TBA",
is scheduled for release in their Fall 2010 catagory.

Could this be a game based on the seventh film exclusively? Or are they rolling both parts of the final Harry Potter film into one game?

Only time will tell.

The Order of the Phoenix shall announce it when it is confirmed either way.