I'm convinced that that is exactly what's happening. They don't want to lose all of the Democratic elections (Senators, Congressmen, state officeholders) that go along with a presidential vote when someone votes straight party. They need a candidate that has a chance of winning. Obama no longer has much of a chance.
It's Hillary. I think you're right.
Clintons are bigger Soros people than Obama, There is the possibility if she does run it was the plan all along. Especially if Obama is using the office to fund raising and it ends up benefiting her.
The counter to this, is Obama's ego seems so big and his callousness to the damage he is doing, he will try to win by all means.