They've brought Quinton de Kock and Chris Morris into the squad. de Kock (keeper/will bat 7) I have seen a lot of and he is very talented but flighty, a fit Jimmy will have him for breakfast. Morris is a mentalhead seamer who is a better batsman than their usual grubby tail, and also in decent form, which will no doubt be annoying. He's also a decent seamer, though no world beater. Think Peter Siddle crossed with Andre Nel.
I'd guess Duminy will probably swing, leaving them with this:
van Zyl
Elgar
Amla
de Villiers
'Faf'
Bavuma
de Kock
Morris / Abbott
Rabada
Piedt
Morkel
We'll be the same plus Jimmy.