In a quote from him last year in March (3.25.21) about releasing quicker updates, he said that event-based releases would take at least two months (60 days). But that would depend on the size of the event (Major Events). After looking over his layout for PD 13, I see at least three events (Major Events) that will probably take longer than two months based on the new location, characters, "addons," etc... that he would have to make for that event.
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and not to mention any time off for vacations, holidays, and personal time he may need in-between or during updates.