[Edit]:
*The current engine Bethesda has been using, Gamebryo is starting to show its age as seen in Oblivion, Fallout 3, and Fallout: NV. Executive producer, Todd Howard revealed that the studio has been working feverishly to improve the character modeling and animation. This is one aspect everyone can appreciate as some of the characters in Oblivion looked like they were beat with the ugly bat.
*Skyrim will take pace in the Nordic lands in Tamriel. As the teaser trailer indicated there will be dragons and a mysterious character known as the Dovahkiin or dragon born. Apparently a person that is dragon born can’t be touched by dragons.