I think there's a risk of oversaturation. Then again, it's possible Marvel knows this and just wants to get as much as they can while they can. It's also interesting that the other things aren't necessarily network television. This avoids direct conflict with AoS, but, at the same time, it would probably have a lower budget, which could be very difficult.
A mini-series would be fun and is something viable without risking burnout. Pick some limited story they want to tell, tell it right, and then have people pay for it. It would be an ideal Netflix story.
What's the status on the films they don't have rights to when it comes to live action television? I've heard conflicting things. Is it just that we don't actually know for certain?