I agree that one more - central defender likeliest - is all we need now.
Not too much tinkering, marginal players leaving whilst strengthening the squad in the right way which will keep the Palace spirit and ethos.
I remember a post where Mark Bright had said we were after 4 players - we have 3 so one to go!

Spoke to Alan Pardew at the FA Cup anniversary dinner and he said a striker was his priority this window. I don't think he meant Bamford. He meant a big name permanent signing.

If we were bringing in a big name striker and playing only one up front Bamford would be sitting on the bench every week and I don't think he would have come to us if that was the case.

Looks to me as if Kaikai is being lined up as a first team squad player who could replace Bolasie if (and I really hope he doesn't) goes. AP has said Gayle won't be sold and I truly hope Muzza isn't either.
We are well stocked with wingers and if no one else came in I think Muzza is still a good front man.
We do need strengthening in central defence and a new CB would be my priority with Williams preferred, but obviously Swansea wouldn't want to loose him.
It will be interesting to see the team for Sunday.