There is a good chance that Haaland will leave. The question is not if he will leave, but when. A player of his caliber is not easy to catch. Or maybe they could make a deal with Madrid that they get Hazard and then some for Haaland, as Hazard is currently experiencing the worst period of his career. There must be the financial possibilities, something like that could be an option to absorb it.
Currently haaland has a long contract with dortmund and the sporting director of dortmund has also said previously that haaland will not leave dortmund this january, but it looks like it will be very impossible for dortmund to hold off haalaand departure if any club is willing to pay him more than dortmund release clause later, I think dortmund will certainly keep haalaand anyway this season, but it looks like haaland has made up his mind to leave dortmund as soon as possible.
Has there been any statement from Haaland regarding his desire to leave Dortmund? if there was a desire from Haaland himself to immediately leave his current team. Of course, it depends on the dowry to be paid by the buyer later in the transfer market early next year. even though the team's management didn't want to let Haaland go. but if the offer is attractive of course Dortmund will not mind.