Greer should no longer be captain and if we have secured the title by the time he comes back, I'd consider leaving him out to give Elphick and Dunk a game or two.
His passing has been superb this season and his experience has added a lot.
BUT, I do worry about him up a league. His pace is not too good and forwards with a little bit of movement often lose him in the box.
I certainly think Poyet will go out and sign a first choice centre half in the summer. And, with the form El Abd has been in and the fact Poyet LOVES him, I can see Greer being third choice come the new season.
I think a large part of El-Abd's improvement has come from playing alongside Greer. I suspect we will get another centre back in the summer but that'll be someone to play alongside Greer, not to replace him.