McGregor played Kenobi in The Phantom Menace (1999), Attack of the Clones (2002) and Revenge of the Sith (2005), playing a young version of the character.
Obi-Wan Kenobi was originally played by Alec Guinness 1977's Star Wars: A New Hope. The character was killed in that film by Darth Vader during a lightsaber battle.
Fans can expect some Disney+ news to be announced later this month at the D23 Expo, taking place in Anaheim.