I doubt the lions deal him. They'd be better off rebuilding the roster around him, no matter the cost. Even though he isnt an elite, top 5 QB, he's a proven starter in this league, and those are hard to come by.
What about the twisted nuts that Karlos had in the preseason. Are we hearing any rumors or links to that kind of 'personal issue'? Possibly the same trashy girl was involved with both?