Actress Sadie Sink has said she believes bringing a younger generation of mutants into the Marvel Cinematic Universe is a "smart choice," in comments made ahead of an anticipated X-Men casting announcement at Disney's D23 fan expo. Her remarks add to mounting speculation about how Marvel Studios will introduce its mutant characters, with fans expecting confirmation of casting details at the event.

The X-Men have yet to be formally introduced into the MCU following Disney's acquisition of 20th Century Fox, and Marvel has kept plans for the franchise closely guarded. Sink's comments suggest a preference for a fresh, youthful take on the mutant team rather than recasting established adult characters, feeding into ongoing fan debate about which actors might take on iconic roles.