I visited blizzard website earlier and directly went to Diablo 3 pages. I felt the excitement after seeing 3 Diablo III Characters in Flash on the site namely Barbarian, Wizard and Witch Doctor. According to the FAQ over at Official Diablo III website, the game runs on and powered by a new graphics engine that can display characters and hordes of monsters in lush, fully 3D environments. At the moment there is no launch date for the release of Diablo III.
Below is a captured image from Blizzard website.