Would you want out of a Sixam / Alien dlc?

I like the idea of a world and careers, and various bb objects that are themed appropriately. It would be fun to have homes like the alien crash site from the Sims 2 console. Something I miss that's not directly alien related, is the biodome from Sims 2 console. That was my favorite location to visit and would look cool in an alien world. They brought the idea of that back in Sims 3, but not to live in.