Pre-Production to Start in September?

According to the April 27, 2006 print edition of Daily Variety, Wolfgang Petersen is eager to get started on pre-production of his next film. The problem is that he's not sure what film that will be, but Ender's Game is one of his options:

Petersen's name has been linked to sci-fi epic "Ender's Game," but the helmer says he's only sure that whatever he does, he'll do it soon. "I had such a great time on 'Poseidon,' I told the people in my office I'm going to do promotion on 'Poseidon,' move into my new house and start pre-production in September. On what? I don't know. We have to look at scripts. We'll do that over the summer."