The next generation of gaming is nearly here, but what about the generation after that one?

Sony and Microsoft are launching their new super-powered consoles in the coming weeks. However, gamemakers at last week's Game Developers Conference Next in Los Angeles were already contemplating outside-the-box innovations -- from wearable controllers to illuminated living rooms -- that might follow the PlayStation 4 and Xbox One.

Here's a glimpse at five big ideas pondered at GDC Next: