Ryujin
Legend
I thought Torchwood was suppose to be the 'UNIT' spinoff without actually calling it UNIT so they didn't have the copyright issues.
I'd like to see a Victorian Torchwood though, a direct follow up to Tooth & Claw that keeps the thematic focus on Gothic monsters (albeit recast as aliens). They could even have the occasional cameo from Strax, Jenny and Vastra
I actually thought that with the several times they were brought back, we'd be seeing a Madame Vastra Investigations spin-off.