Word in the grapevine has it that BBC WorldWide execs want extra Doctor Who spin-off material to keep the brand “alive” when the main show is off-air. They see Class as a failure of promotion and placement, so it won’t be iPlayer-centric or based around a location rather than a character. Possibly unrelated, but Moffat has the rights to the Paternoster Gang, and he has some sort of plan for them (hence Big Finish’s inability to use them in any significant role despite the obvious potential). Preliminary costings have been done for 6, 8, or 10 blocks for a Paternoster spin-off. I don’t know how I’d feel if this is true, but it’s from a pretty trusted source, so … yeah, that’s something.