Johnsons actually moved up a weight class at a time. He fought a few fights at 185, had 1 or 2 at LHW and is now fighting at HW. Although he needs to stay at LHW.
I'm kinda pulling for Arlovski cause he's right at the point of being called back to the UFC. He's got 4 wins in a row and another win over a "name" opponent should do it. Either way this will be a fun fight!