https://www.cnet.com/news/disney-plus-every-show-and-movie-disney-confirmed/

Disney has been tight-lipped about specific exclusions from the service, though. If you don't see what you're looking for here, that doesn't necessarily mean it's excluded from Disney Plus -- just that it's an unanswered question. 

In addition, we know that Disney Plus will be exclusive streaming home for all Disney's theatrical releases in 2019 and beyond, starting with Captain Marvel at launch and subsequently adding Avengers: Endgame, Star Wars: Episode IX, Frozen 2, Dumbo, Aladdin, Toy Story 4 and so on.