There's a way that this could work, but I don't expect they will take it. Disney obviously has a quite extensive media collection. The Netflix deal was primary to put new movies onto Netflix. Classics were to remain digital purchase or optical disc only. So Disney needs to make a subscription service that gives consumers access to the vast Disney Vault. General categories that would need to be included are classic animated features, classic live action, Disney nature (including modern HD Earth Day pics), new (computer) animated features +/- Pixar, MCU, Star Wars, modern live action movies, classic cartoon shorts (Mickey etc. with all the holiday specials etc.), TV library from all Disney properties (ABC, kids shows etc) with short/no delay from original broadcast, and ESPN with it can offer. I don't see how a subscription service can be viable long-term if is lacks any of these segments. This would be enough content that a user wouldn't be at risk of exhausting his subscription, have enough range of content to target most consumer groups, and provide a mechanism for continual content additions apart from 2-3 new movies each year that are worth watching.
Will they do this? I remain very skeptical that Disney will ever provide a means of watching anything from their animation vault for less than $20 a pop. Will certain movies be limited time engagements, then back to the vault? They have enough in their IP catalogue to essentially offer an entire streaming service worth of content, but I don't know if they are ready to give up retail sales. Heck, we're only here because they completely mismanaged ESPN. They've shown no signs that they've learned from that and are ready to do things how consumers want them too.