they might do more overhaul's n' stuff like Continental drift more star type's like those weird misshapen one's. maybe add a preview screen showing the planet's inside's add the sub celestial body classes (Are those already in there?) thing's of that nature, i can't really think of anything beyond that and adding new Exo-planet's here and there, they could do some starwars stuff like they did in Ubox 1 that be nice, they could add thing's like accelerate a planet's evolution rate so city light's can grow over time they could be like what Humanity is doin now: talking every bit of land and turning it into a new parkin lot or some Fancy hotel and let the ecosystem fall apart or they could expand to a point and start exploring the cosmos, that's some Universe sandbox 3 stuff right there!