Its world building and set up. Avengers 3 is no longer the end game, and Marvel has expressed they won't mind recasting James Bond style.
I wouldn't be Surprised if the netflix series is just the start and we see more TV projects on the way. The MCU is the main reason why the hulk TV series is dead
Disney owns three major channels with live programming (ABC, ABC family, Disney XD/Disney Channel.)
So far we we have had three series in development hell from Marvl in Hulk, Mockingbird, and AKA Jessica Jones.
So far there is one Marvel series in Agents of Shield. Five in development in All.
Agent Carter
Daredevil
Jessica Jones
Luke Cage
Defenders
Jessica Jones will probably use much from the orginal pilotfor the AKA series.
With that in check we could see two series over channel. I'm spitballing here but I could see
Disney XD/Disney Channel
Power Pack- it's pretty much the fantastic four kids.
Nova- would skew more all ages and uses the new Nova who isn't dick rider.
Hopefully whatever doesn't channel shows we end up with don't use that terrible disney channel sitcom style thats cheap to make.
ABC Family
Code name Mockingbird- ABC family style teen drama about a teenage shield agent. Have her sort of be a special case (injected with extermis or something) and take the whole teenage hero trained by shield from Ultimate Spiderman. Could gave the show also spin off to Young Avengers.
Runaways- The comic pretty much writes itself and you don't need any of the Avengers and the aeries has a **** ton of melodrama.