Fantastic Beasts director David Yates (who will also helm the sequel) has now confirmed to Screen Rant that Albus Dumbledore will appear in the next Fantastic Beasts installment, and that casting for the role is underway.
Rumor has it that Grindelwald is the character whom Johnny Depp has already been cast to play in the Fantastic Beasts sequel, but that remains unconfirmed at this stage.
Fantastic Beasts and Where To Find Them takes place in the same universe – officially branded the Wizarding World – as screenwriter J.K. Rowling’s Harry Potter series.
If this rumor is accurate, then Fantastic Beasts 2 will presumably cast an an actor around Depp’s age (53 this year, though Depp often plays “younger”) to portray its young Dumbledore.