I still think a return one day would be good for both sides, but that is very likely not next season.
Jose is a class act and a smart guy. He will not be sentimental in free agency, even if he considers Toronto. He'll be one of the more pursued PGs this off-season because teams will be offering all kinds of different opportunities, and I'm sure many will be better than whatever Toronto can offer in terms of money, role, and chance to win.
I totally agree with you. I would clearly LOVE to see Jose back. I mean, a PG duo of Calderon and Lowry, when well managed, can only do great things. It would simply need to be clear who is the starting point guard. To me, it should be Lowry, and Calderon would need to take a small salary contract. That being said, I hope he goes to a great team, which he will.