Every player has a mix of priorities. Mitchell will get his money wherever he goes, and I'm sure he would prefer a big market... but he seems like a guy where a winning situation is a high priority.
I think if he has playoff success with the Cavs he could resign there.
That's why I'm semi-confident he's going to resign with the Cavs, unless they flame out in the first round again.
If they show improvement and have some playoff success, I'm not sure what bigger market team that wants to sign and trade for Mitchell gives him a better shot at winning.