Isaiah Washington's future on Grey's Anatomy: "I don't know..."

Shortly after Isaiah Washington won the NCAAP Award last Friday for best actor in a drama series, Entertainment Weekly tracked him down to ask whether he'll be back at Seattle Grace next season.
''I don't know the facts of what's going on,' the actor said, cryptically.
Washington's future employment has been endlessly debated since the f-word incident involving co-star T.R. Knight
and is comment to EW seems to cast doubt on whether he'll return for season 4. Tthe studio says he's not going anywhere as does his newly-hired publicist Howard Bragman who says ''we are going to do our business in private, not in the press,'' adding, ''I'm looking at the bigger picture. I will not let [the f-word incident] define him. He will not let it define him.''
Washington was also asked about a "Grey's Anatomy" spin-off that would star Kate Walsh as well as Taye Diggs and Tim Daly: He said: ''I don't know when it came about — or why. They don't tell me anything!'