I must admit I didn't do any moon exploring wanna keep it a mystery for when the game comes out especially when there's only another 3 planets to explore in the full game.
Dont forget that there are multiple locations on Earth in the final game so it isn't like it's only Old Russia that will take place on Earth.
Don't forget other planets. The warp drive wasn't just for the moon.
I think it's safe to say that Venus will be in the Singleplayer/co-op seeing as it's in the crucible. Speaking of Venus, has anyone else notices that it has FLOWING WATER? I know it's just a game but with it kinda being serious there wouldn't be flowing water on the surface.
Mars seems very likely due to humans previously colonizing and the cutscene at the beginning.
The following locations I found on the Destiny Wikia page. Not sure if they are all legit. Also, Crucible specific maps aren't included (might be one or two)