There is a rumor that Nick vs. Bisping might be in the works. They did have some small heat a year or two back. I think it would be a great fight for both.
I did a little write up on Nate myself in regards to his Conor matches and potential future trilogy fight.
There is talk of that alright, Bisping denied it, but said he would be interested at catch weight 195LB. I could see it happening for sure. Ah awesome man, I'll check it out right now ;)