I understand it as there are 2562 seats left right now. Each time somebody joins the waiting list that number goes down.
Those that bought season tickets last season have until the 28th to renew. Then on the day of the 29th those that bought a season ticket a few months ago have the option to change their seat to the 3k or so left which in turn well open up their current seat if they decide to relocate. (Relocation day).
Then from the 30th those on the waiting list have the option to buy a remaining seat. If they don’t they will go back on general sale until all 30k are sold.
That is my interpretation of the whole situation. I could be completely wrong about it all
edit: the only way to know how many tickets are left was to see how many were available on the site when they stopped selling them. Im guessing it’s over 3k. I also think they stopped selling them as didn’t expect this much demand and still want to give the early bird buyers a chance to change their seats as was originally announced.