During a panel at SXSW Frank Oz was asked whether or not Yoda would return in Star Wars: The Last Jedi?
"I feel like I’m a prisoner at war here, and I can only give you my name, rank and serial number," Oz said. "To be true to the people who asked me, and they are kind of my family, I have to say I’ve been asked not to talk about it. I love Yoda. I would be happy to talk to you about it at the time they let me."
A cryptic answer and one that suggests the beloved Jedi Master maybe seen on the big screen this December in director Rian Johnson's Star Wars sequel. Observant fans would have heard Yoda's voice during Rey's vision in The Force Awakens.
This feeds into an Episode VIII theory, I postulated during Star Wars Celebration Europe, that we'll see Ewan McGregor reprise his role as Obi-Wan Kenobi on screen. His voice, blended with Sir Alec Guinness, can also be heard in The Force Awakens. It makes narrative sense, especially if The Last Jedi is centred around Luke training Rey a la Yoda training Luke in The Empire Strikes Back.
Frank Oz has previously reprised the role of Yoda in Star Wars Rebels on Disney XD.