The high end of my prediction (6-7 1/2 million per) may certainly be a bit high, I'll give you that, but I think an estimate of about 6 million per is close to what someone will give him.
I agree that I don't want to see him as a starting outside CB, but in the era where you need 3-4 solid CB's due to a higher state of passing + injuries, I wouldn't be the least bit surprised to see someone give him a pact that is slightly higher or right around that of a guy like Leigh Bodden for example.
I suppose it all depends on his performance this year, hopefully as a slot CB.
Regardless, I seriously doubt that Belichick values him as highly as someone else will, and my humble opinion is that he will not be here next season.