Should be awesome. It's being made by the makers of "The Elder Scrolls III: Morrowind" and "The Elder Scrolls IV: Oblivion", the latter of which has won countless awards and has been voted in many prominent gaming magazines/award as "Best PC Game Ever" and "Best RPG Ever" because of it's open-endedness and because you can do anything you want, it's complex character personality/skill system as well as levelling etc.
It truly is mindblowing, and Legacy should be extremely awesome also!
THat also means im goign to assume major comp system upgrades for many.. as oblivion was a huge success but needed the best computer on earth to play it right.