He's slowly losing his place in the team it seems, lost out to Zenzizenzike in free kicks and you'd have to think he might be off spot kick duties too. But he will keep taking corners until he leaves.
I know there is no such thing as a like for like replacement, but when Petersen is close to retirement would you buy a young 18 year-old AMC or AMR, train him the other position to make him AMC/AMR and give him corner kicks and name him Chano Petersen (Jr.) in his honour?