They are already working on true 3D technology where the image is progected into the middle of the room and you can walk around it to see what it looks like from the other side. From what I read about it that technology requires a minimum of sixteen separate cameras to capture the image from all the different angles. Once they perfect that technology then the 3D TVs where you don't need glasses will then be obsolete.
Yup, they've had this technology for a while the 3D glasses technology is just to see how much many they can make before releasing 'true' 3D holographic. The whole 3D glasses thing is nothing new, they may have improved on it but it's nothing new, I'm not old but I remember it when I was a kid. Identical to what I heard that the US Government had 686 CPU back in the late 60's but 'they' decided when the mass population would see 486, there is a controller at hand, and it's not us.