And what exactly is the basis for this concept? How were existing ideas from HotA and even from WOT ignored?

The idea is not to create new "Heroes of Might and Magic," but simply to refine the obvious remnants of the classic game that lead to ignoring weak skills/magic/artifacts, which narrows the gameplay. And, if possible, to do this with minimal means, so that you don't have to learn to play all over again.
I don't know WOT and HotA very well, so I ask those who do to share their ideas, but within the stated concept.

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The animation of the creature with advanced earth skills, and the HP converter – great! You can throw in an angel and get 33 skeletons))

Who will do it? I hope it's Baratorch. A budget is needed! I generally dream of maximum unification of SoD and HotA – so that a new castle, new objects, and other radical differences can simply be enabled with checkboxes.