I don't know the guy of course, but I wonder if he cares?
His form has dipped since the new, big, contract......so perhaps he's simply not trying as hard? Maybe he feels, on some level, that he has 'made it' and has no more passion to push forwards? Could explain the lack of form and lack of a move so far.
Why go on loan when you'd have to do some work, when you can sit as third choice and coast along?
I hope he gets a move. Looks increasingly unlikley though.