There is the atavistic fantasy of "you can watch everything you want at one low price", except the price is not a low price, it is a high price.
The big anti-competitive problem with cable is that cable and satellite providers do not offer a choice of packages. You get basically the same thing with all providers. Hollywood loves it because they get paid no matter how good or bad the stuff they make is, but long term it is bad because there is no market discipline.
Some people with kids will love a Disney-branded streaming bundle and find a lot of value in it. Sports fans will see value in getting the games and commentary they want from ESPN.
Note Disney hasn't announced a "Marvel" or "Star Wars" bundle because in those cases they probably will need to partner with other companies. For instance, what kind of Marvel bundle doesn't have Spider-Man or the X-Men? Sony has the film rights for Spidey, Fox has the rights for the X-Men.
To make a really appealing "Superhero" bundle, Disney may need to team up with other companies...