I would like some kind of new, creative map, though I can't really say what I mean by that. All I can say is that there's too many island maps. I don't care how tall the mountain is, or how many islands are on it, or how perfect for a Lost RPG it is. We don't need that many island maps.
I just can't think of anything that hasn't already been done, though. Only ways to update them to make them more interesting. Celestial Dreams, for example, took the space theme to a whole new level with the way stars were actually moving in the "sky". The not moving part looked great too. If someone could think of some other way to make something better, that's what I would really like.