Also I think they can sell relatively well their tickets again to vaccinated fans and those hardcore fans in Dortmund are probably going to get vaccinated in order to go the home games. Dortmund will be alright.
So if Dortmund don't think they can convince Haaland to sign a new contract, with bigger release cost, and can not convince him to stay longer, they will have to sell Haaland in this summer. It is bad to wait one more season and lose half of income from Haaland transfer.
The release clause will be valid since June 2022. It is a trap for Dortmund because if they won't win any title in a season 2021-2022, they will no longer be able to keep Haaland.
https://www.cbssports.com/soccer/news/here-we-go-erling-haaland-release-clause-details-inside-psg-kylian-mbappe-contract-talks-more/
@SquirrelJulietGarden it’s a very difficult call for Dortmund because if they sell Halland now the fans will be furious, if they sell him next year which is 100% guarantee they’ll have to then they’ll be getting peanuts from his sale.
Lastly the management has to decide whether it’s worth keeping him or it’s not, but from a financial perspective they should sell Halland now and reinvest that money in the squad.