Along with the Davros picture there comes a picture of a Red Dalek which is equally spoilerific so absolutely do not click on the itty bitty image below if you don’t want to see a very redesigned dalek with a paint job.
Get it while it is hot, the BBC may hunt me down for this covert action 
I’m sorry, but as far as I know, the Red Dalek is nothing new, it comes from the old Dr Who series, “Daleks: Invasion of Earth 2150AD” and the film “Dr Who and the Daleks”.
The Red Dalek is only a Dalek Saucer Commander, at least in the Dalek hierarchy. Take a look http://www.historyvortex.org/DalekLeaders.html
Well, yes, nearly… A little bit of knowledge is a dangerous thing indeed.