That is one of the questions this mission is intended to contribute to. Yes, the current theories would expect that, but they would also expect the observable u

That is one of the questions this mission is intended to contribute to. Yes, the current theories would expect that, but they would also expect the observable universe to be swarming with intelligent life, which it doesn't (see http://en.wikipedia.org/wiki/Fermi_paradox http://en.wikipedia.org/wiki/Fermi_paradox). We are still looking for the Great Filter, and if Titan is still viably pre-biotic but lifeless, it would point to the optimisitc outlook that life is less common than thought and that the filter may actually be in our past. If, on the other hand, there is independent complex life on titan, things look less good for us, as that points to a Great Filter later in the development of life.