If there is one thing SRK loves to do, it is argue and theory fight. So, lets combine them and try and figure out based solely on theory and number crunching where characters are going to move around in the tiers!
Looking at the changes, I think they succeeded in getting rid of any S ranks. Cody and Fei might be A+ depending on how much the rekka changes and damage changes for Fei play out and how much speed Cody actually gained in movement. Yun and Yang def dropped from S rank down to A, with Yun being Mid A still but Yang as low A. Makoto dropped entirely out of the A bracket and into mid B, mostly due to other characters improvements rather than her own changes. Abel is def moved up to Mid-Low A and Hakan might be High B now depending on the duration of match start oil.