Journey's End [SPOILERS]

So the synopsis for this episode hasn't been released yet, but I can give you a few rumours. [If you want to read them anyway]

• Dalek Caan seeks down Davros and uses him to make a new Dalek empire
• Davros's second in command as a Red Dalek Supreme, rumoured to be Dalek Caan upgraded or a mutated Harriet Jones
• Donna will be shot at the end of this episode as she is leaving at the end of this series [From other rumours, Donna leaves because she loses her memory and forgets about the Doctor]
• The Doctor becomes trapped in the Medusa Cascade and Rose, Donna, Martha, Mickey Captain Jack, Sarah Jane must try to save him
• In a shock development the Red Dalek casing opens to reveal Harriet Jones as mother to all the new Daleks
• Martha Jones joins Captain Jack at Torchwood [Possible, as reports show Martha and Mickey leaving with Jack at the end of the episode. Also it is known that as of Exit Wounds, Jack needs a medic to replace Owen Harper.]
• Mickey joins Torchwood [replacing Toshiko?]

Also. In the cast notes, it is said k9 [ WOOPEDOOPDOOPDOOOP] (voice played by John Leeson.

Also it says DAVROS : Matthew Gamble.