I think they’re feeling optimistic about it if they’re including him. Otherwise I can easily see them replacing him and inserting the new actor into the already shot footage, like how Ridley Scott did when he replaced Kevin Spacey in All the Money in the World.
I’m guessing they’re hoping they’ll pull in readers by marketing them in a similar way to the movies they share titles with. Especially if it’s a #1 that seems approachable to someone who’s never read comics.