"I guess ‘Panther’ isn’t really an origin story since we saw him already in ‘Civil War,’ but his stand alone certainly introduces you to 99% of his world which you never saw before. And ‘Captain Marvel’ is certainly an origin story from the start.”
Captain Marvel will be the MCU's seventh origin story film, not including the additional origin subplots for smaller characters like Scarlet Witch. This news will probably inspire mixed reactions from fans, as many are already tired of seeing new variations on the origin formula. But from Marvel's perspective, another origin film may be seen as a low-risk entry point to a new franchise, introducing audiences to the character.
Due out in 2019, Captain Marvel is being written by Meg LeFauve and Nicole Perlman, and stars Brie Larson in the title role.