He could still re-sign with NY, but for now he's a free agent.
Chien-Ming Wang is free agent as New York Yankees fail to offer deal - ESPN
This being the guy Dry1313 hailed as a Cy Young-awesome pitcher. He could still be a worthwhile middle of the rotation guy, only if he's alright in the head. Basically.
A lot of ifs. But the pitching lot this off-season is shallow.