When will the pokemon ratings be updated?

I'm sure you'll find out once they actually update the ratings.

Gengar and Alakazam are still glass cannons. Even if their attack is really high there a better psychic move users to attack with. Slowbro is still very good and Golem might get a small buff in attack just like Rhydon. Vape will probably be tier 1 now and Arcanine will drop a little bit.