I think it sounds like a great idea, but to keep interest, you would really need great new graphics and tileset and also the ability to build a striving community. I imagine you going as far as to create environmental creatures and areas full of life that would make people feel welcome...
I think that's one of the things that really keeps playerworlds down... they're too stale and you need to feel like the world is alive. GK is good with the boats going around all the time and other scheduled events...
This is a pretty good idea as long as it isn't too close to The Sims.
