I'd really like to see Zygon.
All these are by BBV, although The Stranger is not meant to be a spin off of dr who, just basicly a rip off. But BBV are basicly big dr who fans, and it has pretey much inspired everything they've done. Their latest thing was Zygon, but after that with the series returned and all, I doubt we'll be seeing much more BBV spin offs anytime soon. Shame my net connection is so slow here and making you tube not work properly, I'd love to see these spin offs sometime.