Rotom-Fan should move up to B+/A-. Being one of few reliable Sawk answers on offense is very valuable in the current meta and the lack of Pursuit weakness unlike Rotom is pretty nice. Flying STAB is actually really good right now with Fighting-types being everywhere and the decline of fat Calm Mind users also favors it offensively. More hazard removal mons being added also help out a lot, with Shiftry in particular pairing very well with it, due to it taking care of problematic mons like Rhydon.
Vivillon could also use a bump to A-. For similar reasons it got better with the recent shift thanks to all of the new hazard removal mons. Vivillon just keeps getting better with each shift, as before it had to deal with Magneton, Sneasel picked it off now matter how fast it was, and now it lost one of its best answers in Fletchinder. Near guaranteed Sleep Powder and a very accurate Hurricane is still terrifying to switch into. Flying-types in general got much better this shift so a raise for both is warranted.
Vivillon could also use a bump to A-. For similar reasons it got better with the recent shift thanks to all of the new hazard removal mons. Vivillon just keeps getting better with each shift, as before it had to deal with Magneton, Sneasel picked it off now matter how fast it was, and now it lost one of its best answers in Fletchinder. Near guaranteed Sleep Powder and a very accurate Hurricane is still terrifying to switch into. Flying-types in general got much better this shift so a raise for both is warranted.