Yes, tickets purchased in the Tomorrow Sale will be eligible for resale through STEP, as long as they have been fully paid for. If you elect to enroll in a payment plan, your ticket(s) will be eligible for STEP once they have been fully paid for.
However, we have not yet finalized details for STEP in 2025. We will publish more information in the Jackrabbit Speaks Newsletter, on tickets.burningman.org, and here in the FAQ before STEP opens.