This has not been reported in the US.
Ben Spies has said repeatedly that he is happy in the US to keep running this series. I think he's making quite a bit of money. He has also said that he doesn't like flying in airplanes, but he said later that he is going to work on that.
Obviously, his next step is MotoGP because he's doing pretty well on a Superbike. I'd guess he's one of the better superbike riders in the world, after reading comments by Neil Hodgson.
Spies has said he would not do another series unless he was on machines capable of winning. In MotoGP, that isn't very many but with his and Biaggi's levels of talent, anything may be possible.
What team was doing this Pier? Suzuki, Honda, what? I'd say that Suzuki and Kawasaki might be ready to add more bikes...