What do I do when I've finished all my puzzles on virtual villagers 5? ?

All you can do now is wait till the next game comes out xD lol.. You beat the game even though there isn't a actual ending, you finished all there is. What I would do if I were you is.. Make it so your villagers sustain life without you and then speed up your computer clock and see how long they live without you actually stepping in xD.. Thats what I do.