The deal to play the tournament at the Sheffield venue expires in 2027.
The Antrim cueman faces John Higgins in a high-profile second-round clash at the Crucible.
British head of state King Charles III will make a limited return to public duties next week, after doctors said they were "very encouraged" by the progress of his treatment for cancer.Announcing Charles's limited return, a Buckingham Palace spokesperson said it was "too early to say" how much longer his treatment would continue.