1) first of all - PVP arenas with global rankings for 2vs2, 3vs3 and 5vs5 2) PVP battlegrounds with 10vs10 and 15vs15 players, but I'm not sure how will it work without healing class 3) few UI improvements: addons for DPS meter and AH, mail with Cash On Delivery feature, achievement comparison tool, linking achievements into chat, Looking For Group engine with class filters 4)
I hope they'll get it right but I doubt it. Perhaps it'll add another month to the replayability but what happens after that? The game needs a lot more work to get anywhere near the legacy left by Diablo 2. It's such a a shame :\ As you can tell from the lack of posts on the front page, my interest has been waning over the past month.