I would love to see a sci-fi/modern 'overworld' tileset too! I'm actually a really big fan of the style and detail of these tilesets, so it's good to se some more environment variety. Right now, Winlu and Kokoro Reflections' tielsets and asst packs have anything close to the style/variety I'm looking for. Well, Winlu has the style but korkor has the variety.... I mean, I guess it's really only a matter of time but still.
Anyway, I hope to see what you guys do next.