The sudden cancellation of the series went down when there were still episodes already in development, and the fact that Clone Wars hadn’t yet bridged the gap between Attack of the Clones and Revenge of the Sith meant there was still time in-universe.
The Star Wars fandom can be a formidable force, and Lucasfilm President Kathleen Kennedy credits the fans for bringing The Clone Wars back to screens in 2020 with new material for the first time in six years.
Thanks to fans, the Clone Wars crew gets to fill in the blanks.