Mod requests (orders).

Actually, you're wrong; you can improve the visuals by using the textures themselves. There are mods on the forum that do this; I know there are, and it's not so much about the texture resolution as it is about adding details, like armor or vegetation for the Orcs. Regarding Heroes on a new engine, I know that the guys have taken on a big task, and there are doubts about whether they can handle it (unless some company hires them to make a remaster). There's still a long way to go before it's finished, especially considering that the visual style is planned to be identical to the base version of Heroes, and I haven't seen many mods for the game on the Unreal engine.