The Daleks are the Doctor’s most fearsome enemies, and are well-known for their brutality, their ingenuity and above all, their survivability. The Daleks have survived everything from an attempt by a temporal race of demi-gods to avert their creation to a civil war that rendered the surface of their home-world a charred cinder, but one conflict that the Daleks seemingly could not escape was the Time War.
This huge temporal conflict saw the Daleks fight an all-out war with the Time Lords, a war that would destroy the Dalek race and leave only a few scattered survivors, including the Emperor and the Cult of Skaro. One by one, however, these survivors would be killed, usually due to the intervention of the Doctor.
The last Dalek drone known as the Metaltron would kill itself after absorbing Human DNA, as we see in the episode Dalek. In the Series 1 finale The Parting of the Ways we see that the Emperor Dalek was killed trying to invade Earth in the year 200,100. Finally, in Evolution of the Daleks, all but one member of the Cult of Skaro would die during the disastrous Final Experiment in New York in the 1930s.
The last member of the Cult of Skaro, Dalek Caan, went back into the Time War to rescue Davros and rebuild a New Dalek Empire, but in the process he saw the Dalek race for what it was and in the Series 4 finale Journey’s End we learn that we decided to wipe his own kind out, engineering the destruction of Davros’ empire to apparently ensure a final end for the Daleks.
However, just like every ‘final end’ the Daleks had suffered so far, the destruction of Davros’ empire would prove to not be the end of the Daleks, as three surviving Daleks would go on to uncover a lost Dalek Progenitor and create a New Dalek Paradigm, as seen in Series 5’s Victory of the Daleks. The new breed of Daleks created from the Progenitor would escape via time travel and begin rebuilding the Dalek Empire.
Exactly what happens next for the Daleks is a bit murky because each episode they feature in seems to tell its own story in terms of what the Daleks do next. The Paradigm Daleks essentially disappear after Series 7’s Asylum of the Daleks, and now the Daleks have established a Parliament, perhaps in order to keep peace. The Magician’s Apprentice implies that Davros has rebuilt a new Dalek race on Skaro, though the Dalek City is later destroyed.
Other Dalek appearances are even stranger. The fact that Bronze Daleks are attacking the Movellans in Series 10’s The Pilot seems to indicate that the Daleks are either interfering with their own history or resuming their past conflicts with post-Time War vigor. The fact that various Classic Daleks are present in the Asylum and Davros’ Dalek City on Skaro would seem to indicate some kind of temporal shenanigans, but it is unclear exactly what they are up to.
Other recent appearances for the Daleks in episodes like Into the Dalek, Resolution and Revolution of the Daleks state that the Daleks have a roaming fleet that serves as their headquarters, and as the Dalek saucer that was destroyed in The Time of the Doctor was apparently the Dalek Parliament, it could be that now the Daleks are ‘between empires’ at the moment and are instead rampaging around the Galaxy in a nomadic fleet. We can only wait and see what the future holds for the Daleks, but needless to say that after surviving the fires of the Time War they are now here to stay – and are more powerful than ever.