As a MIN fan, I'm stoked that they're bringing him back. They had to do something, and even though the price might be a bit higher than what they were hoping to pay, time was of the essence. Thielen is a great team guy. I get the impression that this had been in the works for a while, but both sides were pretty firm on what they wanted. And despite AT not really fitting into CAR's long-term plans, he was great as a mentor for the young WR group, as well as a "security blanket" for Young. They had no reason to be motivated to let him go. Meanwhile, MIN was probably looking to pay no more than a 5th. I heard CAR wanted a 4th. The 4/5 and 5/7 swaps is a compromise (I know the picks coming back to MIN are conditional, so we'll see what that entails). MIN also has a bunch of picks next year, which helps.
Fantasy-wise, I have no idea what to expect. I have a bunch of shares of Thielen in a variety of formats, but mostly in BB/terminator leagues where anything he can do in the first few weeks will be a bonus. Drafted him way late in most of them when nobody else seemed to want to touch him. So very little risk, and hopefully some reward. Meanwhile, I think I subconsciously faded Addison.... don't know if I have a single share of him, now that I think about it. That said, once he's back, I think he'll be mostly fine. Thielen will replace Nailor, I would think. That's the guy I'd be worried about. Not that he's owned in many leagues, but people who took a late flier on him may end up disappointed. Then again, it's a long season, so who knows.