Michelle Yeoh‘s journey to Pandora is happening later than expected. “Avatar” filmmaker James Cameron has revealed that Yeoh’s character, scientist Dr. Karina Mogue, will not appear in the upcoming third installment, officially titled “Avatar: Fire and Ash.” “Michelle Yeoh won’t be in 3. She’s in 4 and 5,” Cameron told Entertainment Weekly at Disney’s D23 convention. “So that got a …