I'm trying to figure this out myself. For the show here in Winnipeg each of the 7 ticket price levels have gone at one time or another from "no tickets available" to "limited tickets" to being able to buy groups of tickets in that level then back to "no ticket" and "limited tickets" again etc. etc. It's been doing this for months and there's still 2 months until the show. (and often these new seats showing up are in better locations that what were offered in the pre-sale and first day of general on sale) I can see new tickets showing up when unsold VIP packages are dropped or days before the show when extra seats are able to fit around the stage but this is not the case here.