Zoning is part of building the maps - if the community has thoughts or input we can address that. But once it's done, just like the map boards that shipped with the game, it's done.
The matter of there being no scenarios, and that making the board useless is another matter entirely. I'm not sure that I agree with the premise but that's only me. The scenario editor means that a map is potentially useful to the community - there are plenty of people who can use it to build scenarios from a variety of other components.
However, that's one person's opinion. If no one wants it, or no one wants to build scenarios for it, wants to pay for it (I suspect the actual purchase price of the digital map will be a matter of $5 or less) or the commission it's an easy enough thing to let it go with a "Not such a great idea after all but certainly worth asking about".