I've been keeping my eye out on this.

I keep going back to the website to keep the eye out on the classes.
I read somewhere that the only class that will appear from the original game will be the Barbarian.
I am just itching to find out what the other classes will be.

I think I also read that some of the game will be randomly generated and some scripted. I think I read that in PC Gamer.

And destructable scenery.

If they manage to add the atmosphere from the original Diablo's into the D3 it'll be a winner.

With so much being put into multiplayer Co-Op, lets hope they don't forget people playing Han Solo.