New Skaro

New Skaro was, presumably, the new home world of the Daleks, established by the 25th/26th century when Ace was in Spacefleet, (PROSE: Birthright) after the Seventh Doctor destroyed the original Skaro. (TV: Remembrance of the Daleks) but he destroyed a decoy world named Antalin. (PROSE: War of the Daleks)

Working with the Master, the Dalek Time Controller created an alternate timeline where it took over Earth from Paris in 1921. By 1961, the planet was "New Skaro" and converting the bio-matter of humans, Sontarans, Draconians, and other aliens into a New Dalek Paradigm. (AUDIO: Master of the Daleks)

The Cult of Skaro later planned to turn Earth in 1930 into "New Skaro". (TV: Daleks in Manhattan/Evolution of the Daleks)