I haven't had a chance to play many archetypes, but there are plenty I love & want to see in PF2.
There's a bunch for Druid- Swarm Monger, Fungal Pilgrim, Urban Druid, Cave Druid, Leshy Warden.
I really like Alchemist, too. Chirurgeon, Herbalist, Homunculist, Horticulturist, Mad Scientist, Oozemaster. I really like classes that make Alchemist more of a doctor and a scientist.
Also I know Witch isn't gonna be in the first 12, but. Shout out to Tatterdemalion.