I have this suspicion, though, that not all these streaming services will fare well. Sadly, yeah, there's going to be a handful and it'll feel similar to cable, but I think some will forego an independent streaming platform (or abandon ones later on) and license it out to the bigger players, especially because people aren't going to shell out money for each individual service. Though besides Hulu and Netflix, I don't know who else is a big streamer of third-party content. HBO does it with movies but nothing else AFAIK.
Maybe some other studios will copy the Hulu approach and create a group of networks all housed on one platform, but I do think it's going to be hard for anybody to push their way into the streaming market without a large backlog of media like Disney.