For all their talk of how different (quick and agile) they're trying to make Death, it doesn't look all that different. Maybe you have to play it. Anyway, still looks great!  
http://www.gameinformer.com/b/features/archive/2011/06/15/the-combat-of-darksiders-ii.aspx 
 
EDIT: oops, typo in title --  Darksiders

i kind of agree, the combat does look pretty similar but, as you said, you might have to play it to notice the difference. Either way, im getting it. Just pre-ordered the CE :D

Combat is not the place where I'm looking for agility, but rather in climbing and overall movement. Seeing War pulling off those acrobatics was kind of funny.

I'm playing through Darksiders1 at the moment and I can kinda see why the devs are saying Death is quicker and more agile to an extent. Playing as War feels like there is a bit of weight to his movement and attacks. But for the most part I bet the two play very similar to each other. One thing I did notice in the QL EX that was posted the other day was the recycling of enemy models from the first game which to me was a little dissapointing, but hey, it is still set in the same universe and close to the same general timeline so I guess Darksiders2 gets a pass in that respect.