Well, the whole point in there being a map competition type thing is so that Kovu doesn't have to do as much work. All he'd have to do is add the winning maps to the game. Really, he should be able to do that much.
To be blunt, if he refuses even to do /that/, then he really shouldn't be totally in charge of the whole game. And yes, in case anybody decides to tell me that I'm not seeing the entire, difficult picture, alright, I'm probably not. Even so, I do understand how difficult it would be for any of this to really actually happen, but my point is that it may be easier to have other, willing people make the maps, and then have Kovu just add them to the game. I also do understand how hard it'd be to even get Kovu to do that, but only Kovu can choose when he wants to update the game, so there's nothing that can be done there.
This wouldn't only be less work for Kovu; there'd be excitement over the actual competition and the idea of having your map be a default one, as well as people who are just excited about having new maps, /and/ it would settle the constant need for new maps.
Obviously, this is still unlikely to ever happen, 'tis just a suggestion.