Maybe, maybe not they are yet to finalise it, they are used to having alot of talented players no doubt and about the rotation , if I get it right I.e rotating mbappe for other player which I don't think it will be very possible although they might want to rest him but rotating him frequently might not be very possible IMO but if it turns out to be true then I hope he adapt without losing form ( don't forget about hazard ,although his case was different..)
Since they have signed Mbappe, Ancelotti have to do some rotation in the squad in order to create space for Mbappe since they are not making use of Joselo they have as a striker, definitely, one of the wingers will have to be plying as a forced striker even though it can never be one at a time, the wingers need to be rotting by switching positions from wing to strike which will make them more dangerous because they will be difficult to predict.
Hazard case was different, he was a natural winger that was brought to the team before Vinicius and Rodrygo, so he had the chance to make it but failed.