I feel his sole reason for wanting to leave us to get winners medals in his collection. Had he won a couple with us I reckon he'd have been a one club man for life.
As a result, I'm not sure that he'd be too bothered about which club he went to, the result will still be the same. What may sway it for him is which he thinks is most likely to win the CL. In recent years, PSG have been just as likely to win the CL as Bayern, possibly even moreso.
I also expect a lot of his decision will be influenced by his Wife and, in fairness, Paris likely has more to offer, in the way of a multi millionaires lifestyle, than Munich does.