https://screenrant.com/moon-knight-oscar-isaac-contract-future-return-possible/

Oscar Isaac's contract means that his MCU return is not certain, but Marvel has many reasons to bring Moon Knight back after the season 1 finale.

When you have a successful show with a huge fan following it usually means that the show is already promised to be a monster hit. In the case of Moon Knight when you have a one hit wonder actor when the show is successful the actor is no longer a one hit wonder and becomes a big star for years to come. Moon Knight certainly has turned Oscar Issac into a huge celebrity by beginning a huge career in TV but prior to Moon Knight Oscar Issac was not a one hit wonder but starred in the movies Dune and The Rise Of Skywalker and also was a voice actor in cartoons. But as we saw what The Mandalorian did with Pedro Pascal and now Pedro Pascal is a rising star in Hollywood and now because of Moon Knight I think Oscar Issac will be in hot demand for movie roles and he will make guest appearences on TV shows in the future. It just goes to show that when Disney+ has a new show it usually means a stepping stone for new actors/actresses
Bestie