I don't get the point of a D2 master, why not just make an expansion for D2, or a massive patch upgrade?
I don't want HD graphics, half the reason D2 has that dark, goth feel is because of the graphics it has. Another act and more items can easily be added, so can more usable characters.
Companies try to be innovative and add nonsensical things, Diablo 2 is great because its basic, yet still complex. There is no focus on PvP anymore either, that was half the fun, not just doing 5000 baal bot runs or just mfing bots and making zero actual profit.
Throw a perma ban on all cd keys using bots, add another act, (Act 6....Diablo...cmon it sells itself) maybe add two characters, Angel and Demon, make rare items great again, and setup a PVP arena. Boom, gold.