Future of game engines, ray tracing?

Daniel Pohl, german who used openrt library to creating ray traced version of quake 3 (and much later 4) tried to find a job in game development. But they didnt want him, so ho came to Intel. And what will he do there? Discover how to make ray tracing technologies better, and how to add support for such technologies into graphic cards. That sounds really interesting. If they can discover way how to support ray trace, it can bring revolution within gaming hardware. But that can be distant future.