I think Pete stays at USC. He will hold a press conference and tell us all how he couldn't leave these wonderful kids and loves USC. That USC is so great even a great offer at Seattle wasn't enough to get him to go.
He then looks like a hero to all these kids, hauls in another fantastic recruiting class, and uses this to solidify future classes.
Just a theory, no inside info here. Of course, he could hold a press conference tomorrow wearing Seattle gear.