People were worried that Marvel's next "Defender" wouldn't be appearing on Netflix until early 2015, but Netflix Chief Content Officer Ted Sarandos put those rumors to rest at the Television Critics Association press tour,
"...every six months, you’ll get a new season or series from The Defenders group"
If we can believe that schedule, Krysten Ritter's take on Jessica Jones should be bingeable around October or November. He also clarified that Daredevil Season 2 would be next in line for early 2016, in which the Devil of Hell's Kitchen will take on The Punisher.
But don't expect any cross-overs until all four of The Defenders get their own series. Which means, Daredevil Season 2 will be followed by at least Luke Cage and Iron Fist before the team up begins.