In Erling Haaland contract there is a realse clause in 2024, for 200 million euro. So he can leave the Premier League side Manchester City in 2024.
But this clause is only for certain teams. As media reports, certain clubs are Barcelona and Real Madrid. Arsenal is not metion in the report. Arsenal were one of the teams interested for Haaland, but the transfer fee was too high. Haaland to Arsenal in future? You never know!