Board Thread:Whoniverse Discussion/@comment-24121492-20150919193757/@comment-24121492-20150920163727

I also loved how easily Missy switched sides. "Oh wait... The Daleks are winning. Hey Daleks, I'm on your side now"

SPOILER:

Well the invisible enemy is pretty obvious, since we see them in the next time trailer. Maybe the Doctor DOES kill Davros, and we're gonna explore that universe in this episode(then obviously get undone at the end), so the invisible aliens might actually be Daleks. In this universe they don't exist, but Moffat could easily pull a "The Daleks MUST exist because of the Time War so they still exist but they're weak and they're invisible because they haven't been created" or something like that)

END OF SPOILER:

Yea, there's no way they're gonna kill Davros. The Master and Davros are NEVER going to die permantly.