We need a left back, two centre halves, another striker, more physical, and an energetic Kante type midfield/holding player.
Out, Ota, Angelino, Mendy, David is retiring.
We should get another season out of Fernandinho and Aguero. Pep loves Gundogan so he will probably stay as well.
Sane it obviously depends on his contract. Big decisions on Stones, Mahrez and Jesus to be made. Stones for me is mentally and physically weak and injury prone but he may stay as fourth choice centre back. I'm not sure Jesus has what it takes to be our main striker and may not want to play second fiddle any longer. Mahrez although at times showing the quality he possesses not consistent enough and often goes missing. If he's happy to be a bench player he may stay.
It's sure going to be an interesting summer!