My personal thoughts are that perhaps we will continue with this exponential expansion and perhaps go into a big rip mode and at that point all intelligent life in the universe will die. All the tears and all the struggles and all the heartbreak of humanity since we rose from the swamp, it's all for nothing. Why should you bother to wake up tomorrow knowing that we're all going to die billions and billions of years from now when the universe turns to absolute zero, when the stars blink out, when we have nothing but neutron stars and black holes? What does it all mean anyway, if we're all going to die in a big rip?
Well, my personal attitude is that when the universe is about to die, why not leave the universe? Trillions of years from now, we will have the ability to bend space and time into a pretzel. We'll be able to tie space into knots. We'll be what is called a type three, maybe a type four civilization, a galactic civilization with the capability of harnessing galactic power. At that point, when the universe becomes so cold that all life is freezing to death, I say let us escape the universe, go into hyperspace and go to another universe.