LS Fest 2021 has been a blast!
I only saw one wagon at the car show, but it had a turbo LS to make up for it. (Not mine)
As far as vendors go, support was somewhat slim, but I found some aftermarket support for suspension and custom wiring harnesses (I didn't get far enough to find out if they differentiated between wagon and sedan)
I highly recommend any and all of you come next year!