This series could wind up going to theaters in alternating years opposite Johnson's movies, which would put the franchise in multiplexes at least through the mid 2020s. But there's also speculation that this project could be something for the small screen instead. The duo is mostly known for television productions, though Benioff has written theatrical features in the past (including X-Men Origins: Wolverine). And Disney might be looking for some original movies for their new streaming service, set to launch in late 2019.
Interestingly enough, the duo going from Westeros to the Galaxy Far, Far Away makes sense given how many Game of Thrones actors have already made the leap to Star Wars, or vice versa. There's Gwendoline Christie in The Force Awakens and The Last Jedi, and now Emilia Clarke is co-starring in Solo: A Star Wars Story. Many others have shared in both worlds, including Max von Sydow, Keisha Castle-Hughes, Julian Glover and Jessica Henwick.