The festival posted a Squid interview on their IG stories a week or two ago so with a new album coming I'd guess they're back, maybe even Garden headliner.
Not a lot else suggesting itself yet but from the Psych Fest line-ups I'd expect George Clanton and Anna Erhard.
thatll be the big issue during the fallow if theres an incident. Emily wanted to do this favor for her father and then decided to not care about safety and literally allowed the headliner of the evening be in a space thats too small. They still arent learning their lessons cause they trust human beings too much.
That being said, not seeing Neil Young but will wait on the other options Charli aside since I can just see her in April with proper guests and stage placement anyway.