I don't see a scenario where Chourio goes to AAA. From top to bottom (Mark A to Pat M) they have said over and over again its his time to learn at the MLB level. I don't know that I agree or disagree, but the organization has been very clear in their stance.
They have also shown that, when healthy, Mitchell is going to play.
The obvious move is to play the kids over relatively old Perkins, but that is tough given how he has been playing and that this franchise operated on speedy outfielders figuring it out later under Doug Melvin. I really wish they could get Yelich to buy into 1b and DH. His defense isn't bad, but we are beyond lucky to have 5 elite upside defensive MLB CFs-- Perkins, Frelick, Chourio, Michell, Wiemer.