I dunno... I'm sure Blizzard will sell a bazillion copies, but it's not grabbing my interest this time around (I played 1 and 2, mostly in co-op LAN mode with my S.O.). I like my games to have at least some minimal tactics in the combat, like use of terrain and doorways. The gameplay video with the barbarian whirling around through the zombies looked like just a mindless, hyperactive click-fest.

Click-click-click-click-(special move)-click-click-click-(special move)-click-click-click-(special move)-click-click-click-(special move)-click-click-click-(special move)...

That's not my kind of game. But maybe it's more interesting than it looks from the video. Or maybe I'm just getting too old for this type of game. I'll try a demo if one is released, but I'm for sure not pre-ordering or buying it on release, without knowing more about the gameplay.