I'm not a person that thinks the universe has a meaning or goal, so maybe I'm not the right person to answer. I view it similar to any natural process that you're already familiar with. Think of a waterfall. What's the goal of a waterfall? What happens after it completes it's goal? The way I see it is it's just doing a thing and after it runs out of water to fall, it just becomes something else (a cliff, or just a "not-waterfall").

After the universe runs out of "stuff to do" it'll probably be the heat death (just nothing happens anymore) or a big crunch where effectively another round of it "creating" and destroying things will begin again.