Ultimate idiot

[grarrow]

Sorry to be the idiot that ask this...but what have I missed?! I've kept up with all the Ultimate Comics...but I do not remember at all Karen (Jean) and the others leaving the "new" X-men. I went back to read Ult. Hawkeye....and still...there's nothing there. They just show up as support! Can someone please tell me where they left the X-men/Wolverine's Son, etc.?!

Thanks in advance