IDK about other tickets, but I just looked at AP 1-day tickets and every single day from Sept through the third week of Dec is available. I’m sure they’ll calculate into the equation the potential value of
Epic-included AP spending in parks vs AP 1-days going unsold altogether and redistribute if they think they can sell those tickets to non-APs, or add Epic to APs (in whatever form that takes) if they don’t think they can sell the day tickets at all.