No chance - Fergie would invade Germany. Assuming a win for ENG today Rooney won't be needed until Jun 20 for Sweden.
You are right though, they probably won't play him, but he needs some match fitness, or he will be really flat against Sweden.
Swedish commentators were also speculating about a run-out for Rooney if England has a secure lead.
I dont think it would happen though.
First of all England needs to pick up its game :-)
Downey for Owen. England is basically saying they don't feel like scoring any more.