I think he will contribute more, playing that "Stones role", judging by his pace and skills with the ball.
Rodri position isn't gonna happen, so we will need cover there definitely.
But as a "false centre-back" or whatever that new position is called in this system - I think will suit him..
And it's important because from our current centre-backs, no one is able to play that position well, except Stones.
Ruben has his duties, Akanji, Walker and Ake are better as RCB / LCB-s, so there is space available for Kalvin..
For Rodri's role - we can use Gundo, Rico has skills, maybe someone new will arrive as well..