Board Thread:Whoniverse Discussion/@comment-24121492-20151025062746/@comment-27270572-20151025094613

The Zygon Invasion will happen before Death In Heaven but be after The Day Of The Doctor which will explain why Osgood is still alive. In this part or the next there will probably be some foreboding to Clara dying at the end of the season which makes me think that they may just be leading us on.

The cliffhanger will probably be the HUGE spoiler that was released in the synopsis for The Zygon Inversion. There should be several deceptions as to who is who with characters constantly betraying each other so I think they will make a distinct mark to know who is and isn't a Zygon. The cliffhanger could also be a huge Zygon invasion with everyone in a city being revealed to be a Zygon as they invade UNIT, Clara and the Doctor but more theories will be posted later with the release of clips.