I believe the Next New Thing in New Media will have something related to virtual worlds. Something that currently exists only in science fiction. Where a person can use some sort of device to plug themselves into the virtual world. The device stimulates their nervous system directly and it feels like the real world. In the virtual worlds you can do anything you want. This will be especially useful to disabled people, this will allow them to experience things they normally cannot do.
Now it may sound something like Second Life at initial glance, but the virtual version will be so much better. It will allow the users to be fully immersed into the virtual world and users will be unable to determine between the virtual world and the real world. I imagine people will spend immense amount of time if such technology does become created. Life would never be the same once this comes out.