There was a guy named Waffle who also tried to come up with something, but he ended up enlisting. And Sav with Baratorch might come up with something too. For the Warlord's Tower, this should be solvable with a script, which is much simpler. And that might attract beta testers.
If desired, the algorithm can be ported to the HD Mod platform.
Although, it's more likely that it will be ported to Heroes of Might and Magic, as they have the ability to fully refine the graphical part. For example, the monsters could be made to not just stand on the water, but on some kind of platforms or boats or shipwrecks, the icons could be redrawn with a marine theme, buoys or drowned people could be added to the artwork, underwater rocks could be added to indicate the former terrain, etc.