To be a "correct" Diablo successor, it should have fully procedural dungeon/zone generation, just like Diablo 2 and Diablo 1. As it currently is with Diablo 3, it's "been-there-done-that-seen-it-all already"; I'm rather bored with the game at this point. True procedural generation would have kept it fresher, longer.
So yeah, all this stuff -- these announcements of "Loot 2.0", "no RMAH", "Reaper of Souls DLC", etc. -- it's too-little-too-late; zero incentive for me to return to Diablo 3. Hell, I'd rather go back and play Diablo 1 at this point.