Swanson has been improving a lot, but he's not ready for Aldo yet in my opinion.
I would like to see him get a huge step up in competition though, along with Brimage. I picked Brimage (he was considered the underdog) to beat Hettes by decision when they fought which he did. Just another underrated guy that also needs a step up.
Like others have said, Swanson can't do any worse than he did the first time, so at least he will probably look improved if/when he fights Aldo again. He just better watch out for those darn knees.