I think Jason would be wise not to make a rash decision after the Olympic season - though this is Jason we're talking about, rash decisions aren't his go
We already know Nathan does not intend to continue after Beijing and I had read somewhere that Zhou isn't continuing either. With those two not continuing, and thus far none of the younger skaters really shining or showing any type of consistency, Jason has a huge opportunity. He will be the veteran and the undisputed best skater in the US.
I'd love to see Jason crowned National Champion one more time before....well.