As for the spinoff project that has gotten the axe, fans hoping for a live-action series set in Flea Bottom in King’s Landing are out of luck, as that project is reportedly no longer in development, although that was also said to be the project least far along in the development stage compared to other projects.
When reports first broke of a potential Flea Bottom spinoff, it was simply described as a prequel series, which would have meant before Daenerys roasted it in the penultimate episode of Game of Thrones, and possibly not featuring any familiar faces.