Disney's streaming service will reportedly produce multiple TV shows featuring several major characters from the Marvel Cinematic Universe, but franchise fans shouldn't expect to see all the Avengers on the small screen anytime soon. In 2019, the Mouse House will launch their own digital platform, reportedly titled Disney Play, that will compete directly streaming giants like Amazon Prime and Netflix. Part of that initiative includes developing live-action Marvel and Star Wars TV shows.
While Disney has refrained from revealing any concrete details regarding their plans for those TV shows, it's been reported that the budgets will rival major movie productions and even take on the most expensive shows on television, like HBO's Game of Thrones and Netflix's The Crown. Right now, Jon Favreau's live-action Star Wars TV series will reportedly cost $100 million for its first season. It's safe to assume that the same will apply to the Marvel TV shows as well - but that doesn't mean audiences should expect to see the main, main MCU heroes on television soon.
Earlier today, it was reported that Loki, Scarlet Witch, and more MCU characters will be receiving their own Marvel TV spinoff shows on Disney's streaming service, with the original stars reprising their roles. In that same report, Variety notes that these shows won't feature any of the core Avengers who have received their own movies on the big screen, which means no Iron Man, Captain America, Thor, and so forth.
Given this particular piece of information, audiences shouldn't expect to see Loki reunite with his brother on the small screen. Disney and Marvel Studios are looking at these properties as outlets to further explore secondary characters who've remained out of the spotlight in the MCU. So, characters like Shuri and Hawkeye can potentially headline their own series, but people like Doctor Strange and Black Widow can't. (Scarlett Johansson currently has her own Black Widow solo movie in development, which logically takes her out of the running for a TV show.)
It also makes sense that the core Avengers members - Robert Downey Jr., Chris Evans, Chris Hemsworth, and possibly Mark Ruffalo - won't appear in these shows, since their stories have already run their course on the big screen, not to mention the fact that most of their contracts are up following the upcoming release of Anthony and Joe Russo's Avengers 4. What's interesting is the potential for Ruffalo's Hulk to get his own show. Sure, there was The Incredible Hulk movie in 2008, but Ruffalo didn't star in that film so he may exist in somewhat of a loophole. Of course, all of this is based on a report, so it's possible that those other Avengers may appear in one of the streaming shows down the line.