I'm not sure it would take that long at all?
Please note, to ensure our ticket allocation process is as fair as possible, any supporter who is successful in obtaining a ticket for the Woolwich match will not be entered into ballots for subsequent reduced capacity home matches, until such time as all Season Ticket Holders who wish to attend a match have had the opportunity to do so. Details on further ballots will be communicated in due course.
40,000 ST and corporate in total, if you bear in mind a lot won't apply due to Covid, deferring, etc. So if there are 2,000 per game then in 20 games all STs will have had an opportunity?
I realise that's pretty basic however, seems logical to me.