We are coming to the crunch with Kompany I think. He hasn't played for about 6-7 weeks, and only returned to full training this week, but it is important that when he returns, he does not break down so I think City maybe a bit cautious. We'll want to know before the transfer window whether Kompany can be an effective player in our squad.
I highly doubt we would sell Kompany in January. Even if there were a slim chance he could make a return for the tail end of the season the club would keep him on. Registering him for the CL squad though, maybe not.