Diablo 2 is my current favorite game of all time; i grew up watching my dad play diablo and diablo 2 and by the time i could play for my self i was in love with the game. Blizzard is not a company to half ass anything but what is everyone wishing for in this game. New features expandability replayabilty? I just hope it will be such a lasting success as the last two of the games. The beta seems really well constructed from what i have seen but what is everyone's general hope for the next installment.
Replayability.. I loved how you could play Diablo 2 without the internet for hours and still find Items/Monsters you never knew existed..
I agree with replayabaity as a huge wish, i bet that they do a alot of reward and balance changes as the game progresses to keep things fresh in inferno mode.