Good idea, but it's something the community could do on it's own. It costs maybe a couple of quid to buy Age of Wonders on Steam, Good Old Games and Impulse nowadays and that has the editor that was used to make the original BM maps. There's also
this page on the wiki that has a few resources and plenty of samples for helping with the copy/pasting and stuff so you could edit the Beluaterra map to your hearts content even without AoW. The only thing I think would be hardest was keeping the original city sizes and artwork consistent, or making everything look consistently black and ashen or maybe inferitle and desertlike. or what have you. Though most eventualities look to be fairly well covered by the samples on the wiki there.
