Agatha All Along, the spooky spinoff series from WandaVision creator Jac Schaeffer, centers on antagonist Agatha, a dark witch who wielded a book called the Darkhold and tried to steal Avenger Wanda Maximoff's powers. At the end of WandaVision, Wanda cast a spell on Agatha trapping her in a delusion.

With that, we can deduce that Agatha All Along is set three years after the events of WandaVision, which in turn took place three to four weeks after Avengers: Endgame. In short, the new Disney Plus series is set in late 2026 or even early 2027. If accurate, that means it's the latest-stage title in the whole of the MCU.