The 31-year old Ivory Coast centre-back was seemingly frozen out by Mancini but has returned to the line-up in recent times with some very impressive performances and may still remain at City next season.
"We don't know at this moment. What is important is that he continues to play the way he did on Monday night and against Chelsea," said Mancini.
"Kolo is a really professional player and deserves to have the satisfaction of those performances. He has done really well and we will see. I am happy for him because he is a good guy."