Soon, someone should make sure to submit a track proposal. I'm not on the track selection committee so I can't promise acceptance, but I suspect what's called for is a pro forma proposal — noting the success of your event last year & include the attendee count you had from that.
From there, if accepted, someone from #SFC will be in touch on next steps.
https://sfconservancy.org/fossy/community-tracks/
If you are familiar w/ FOSDEM DevRooms, #FOSSY tracks are loosely based on that.