As someone who's played thousands of hours of D2:LOD and put it up there as the best game ever - including being top10 PVP Smiter in the EU non-ladder realm, I am very much looking forward to D4.
D3 was a terrible disappointment and Blizzard soured a lot of fans in the last decade, however everything I've seen on D4 has restored the faith. It's fresh, yet the devs seem to understand the core of what made D2 a great game. No pay-to-win and the active listening and communicating with the community is a big plus.
It sucks that I have issues with my eyes looking at screens now after several concussions, but I will for sure buy it and play as much as I can. Rogue first - Hybrid Assassin was my fav D2 char, then Druid, then Barb, then Necro, Then Sorc. Long time since I've been hyped for a game.