What's next after Blu-ray?

What's next after Blu-ray?
- I think that Blu-ray will suceed in becoming mainstream but never get as big as DVD. I also think that it will be the last big mainstream physical media. It is almost certainly the last disk based media. There will be more layers for backups and computer use but thats it.
The next one will be holographic blocks or something. It will not just be for movie watching, it will run programs like virtual girlfriends like on The 6th Day or tennis instructors like in Total Recall. There will be a vitual chef projected into the kitchen helping you make recipies etc. There will be a blackmarket for specialty stuff like sex programs with your favorite actress's head pasted on the holographic matrix. Then come the feedback gloves and other sicko attachments for long distance relationships. Virtual phone calls. In a few decades hell we could have full fledged holodecks.