I wouldn't be so sure about Pitt. franchising him, or being willing to overpay for him. Actually listening to all the reports out of the Pittsburgh media, they believe it's a foregone conclusion that Woodley will be the most likely to walk.
They have 2 young LB's who they feel can be difference makers on their D, in Worilds, and Sylvester. They love these guys. Not to mention they feel like they can turn any LB into an all pro. That coupled with the fact they recently broke the bank to extend Harrison, and have Timmons coming up for free agency next year, I too believe Woodley leaves.
I'm not saying he's going to be sporting a Pats uni next year (although I'd love that) but I think the odds are great that he's sporting colors other than black and gold.