I will try to give leaks as I get the information.
Galarian evolutions:
Mankey line gets a split evolution. One you will see in isle of armor and the other in crown of tundra has ice typing.
Psyduck finally gets a Psychic Typing evolution in isle of armor. Looks like a mix between a duck and a swan with a very majestic look.
Noctowl gets a galarian form
Yes, Dustox gets a galarian form.
No Eeveelutions in isle of armor :(
More to come