If you look at the vv2 sneak peek you will see that the potential drawings promoting the second version show 2 villagers inside the cave. Most of us believe that the cave is the key to the upcoming next version of the game. The second version is called the lost children. Technically virtual villagers never ends, you may have solved the puzzles but you can keep playing endlessly or until you lose all of your villagers. You can also run multiple games as most of us do on various levels of difficulty.