So I know a bit.
If you need a map for your campaign that does NOT get updated by the modder (after trying to contact the modder ofc and ask them to do it), you COULD extract the pak from the original, and import it in DE editor (when it comes out), There MIGHT be a few step you need to do, like rerender the lightning, but that is all. Its very very easy.
Then you will be able to use the map in your DE campaign as you now have a project with the levels in it.
I guess I don't need to tell you that you should NOT publish it, as this is not your work. That would be a bad move. Unless ofc you have a deal with the orginal modder.
I have plan on pushing mappers to update myself... we need all the maps we can get
I have had no problems with any of my maps (no scripting in my maps or elements that are selfmade, so I can't say if maps with selfmade elements will cause issues).
My DE maps are not published yet because we cannot publish for GM yet, as the scripting in GM needs polish.