Board Thread:The Panopticon/@comment-1783865-20150927165807/@comment-1783865-20151002061741

OttselSpy25 wrote: Some stories will show Daleks dying in various ways. We can't try to justify this futher than noting the differences in the stories where appropriate. We are not talking real world-perspective, y'know. From that viewpoint, yes that is a new idea. But from the in-universe perspective these sewers will always have existed. And we can assume that these Daleks are the old Daleks seen in the previous Skaro-set episodes, but as Shambala108 said perfectly, we can't conclude this on the pages, as none of this is seen or mentioned in the episode.