Well, if Reuters has it, it must not be rumor, right?
I think it's best if it ends after this year. I have to applaud SMC for leaving, and not dragging it out another year.
Oh, and spoiler alert! Willow's supposed to show up on Angel. WB also hasn't announced it'll pick up Angel for a 5th season, but I think that WB'd be stupid to not. (then again...)
Oh, and Alias was picked up early for another season. Whoo!