TBH theres not really much to improve upon... unless they go back to D2 but we all know they won't do that. Its not hard to make a good dungeon crawler/looting sim. Kind of like AOE2, the formula was perfected, stop fucking with it, and give us more of that, can't even mumble some shit about "player retention" D2 is still alive and well, if they would do something about the damn bots though, AOE2 the same although not really through official channels, but the remaster revived it a bit. And then they used whatever godawful engine for 4's graphics, god damn. MS could have just done AOE4 in the engine they used for 1/2's remasters and it would look fantastic, maybe tweak stuff a little to look differently, give it some flair but it works.