Looks like Horatio Sanz, Chris Parnell and Kenan Thompson are out at SNL. Darrel Hammond is still in negotiations. Parnell’s a wonderful comic actor, but I imagine he’s just come to the end of the line. Best of luck to him going forward.
Edited to add: Sanz says as far as he knows, he’s coming back. You’d expect that with the success of Boat Trip, he’d be eager to leave, but I guess you just can’t predict what these mercurial celebs’ll do.