As stated before, we will be using the old 4.36% cutoff points for the first 2 months of the new mons to let things settle in a bit.
I'm going to keep it short and just list everything this month.
Moving Down from OU to UU:
Arcanine, Wobbuffet, Porygon2, Torterra, Empoleon, Staraptor, Luxray, Rampardos, Bastiodon, Wormadam(Trash), Wormadam(Sandy), Wormadam(Plant) Mothim, Lopunny, Purugly, Skuntank, Chatot, Spiritomb, Drapion, Toxicroak, Gastrodon, Abomasnow, Rotom, Rotom(Heat), Rotom(Mow), Rotom(Frost), Rotom(Fan)
Additionally in BL these 2 mons are below the cutoff if we wished to move them down if the new mons make it acceptable.
Moving Down from UU to NU:
Magneton, Gligar, Mantine, Manectric, Zoroark, Galvantula
Below the cutoff but in BL2:
Moving Up from NU to UU:
With this many movements its very possible I missed something, please let me know if you find something.