Originally Posted by DarthParametric
They already said it was Gamebryo a few weeks back. It has been in development for a couple of years (presumably at least since FO3 was finished, if not beforehand), so I wouldn't expect many changes. Maybe they'll switch to the id Tech 5 engine for TES6, although they've said previously that its not an "open world" type engine, apparently.
The trailer was pretty epic. Not that it tells you anything, but it was still cool anyway.
However, I must say that I HATE GAMEBRYO!