403b doc restatement - next cycle

If we just recently completed restatement of a 403b plan, when would the next cycle be due? 

Filing Period for 403(b) pre-approved plans under Cycle 2 will commence May 2, 2022 and end May 1, 2023.   This is talking about the vendor seeking pre-approval not about your individual 403(b) plan sponsor, however.  The program cycle is intended to be 6 years like 401(k) and (a) so one might assume that sometime 6 years from  March or June of 2020, this will be upon us again!