Lately, Kovu has appeared back on the scene. Though, he is currently working on another game. This means he has put Feral Heart in the back seat for a while and he may, or may not return to it himself, or give the source codes to one of the Staff members, possibly Red for example.
As for more maps, there are hundreds of maps, and many map packs to which you can allow your character to explore in.
The mass markings are a good idea to have them involved i the FH download, it that means that as soon as someone makes more, then all those people whom aren't able to download the files properly, and unable to get it working, then has another issue.
I must admit, i do like the grass idea, it's be a lovely change to see that much detail go into the maps, but it'll be unlikely to have for quiet some time.
-Kroven