They probably will like, 16,500 season tickets sold so far, that's not bad tbh. They'll probably get close to 20k before the start of the season, now since all this optimism has hit them. Then they'll start playing games and realise how crap that league is, they'll be winning virtually every week and they'll flock back. The following season is going to be the big test, it'll be the last of the parachute payments, financially they may need back to back promotions to survive as a club.
https://www.readytogo.net/smb/threads/16-and-a-half-thousand-season-tickets-sold-so-far-says-donald.1431619/
They're already spoken for.