Partial Source: The Wrestling Observer
Last night on RAW, WWE started the CM Punk vs. Brock Lesnar feud. The feeling at this time is that their first one on one match will take place at SummerSlam and not Money in the Bank. The company is looking to hold it there for a few reasons.
First of all, the Money in the Bank PPV traditionally does well on its own, and doesn't need the addition of Punk vs. Lesnar.
Secondly, WWE feels that Paul Heyman, CM Punk, and Brock Lesnar can keep the interest of the fans until SummerSlam and that the feud and match has a chance to make money for them in the long run.
We'll keep you posted as we hearr more.