I think Sony did a great work by releasing the new NEX-FS700. It is getting a lot of positive response on the web and from film makers (I am a film maker!). The video on top is made by Sony with the Sony NEX-FS700. And there is one more video at Studiodaily (Click here). While the camera is great what we are missing are dedicated video lenses with powerzoom, smooth aperture rings and so on. As long as these are missing it will be hard to jump on the E-mount camera
All I can say via my sources is that Sony knows that and that they are working on it
UPDATE: NEX-FS700 hands-on at Photographybay (Click here).