Another problem is that no civilization can be sure that it knows how and when the universe will end. For example, there is a Big Rip theory or risks of false vacuum decay.
So its main goal would be finding the ways to prevent the death of the universe or to survive it. And some of the ways may require earlier actions. I explored the ways to survive the end of the universe here: http://lesswrong.com/lw/mfa/a_roadmap_how_to_survive_the_end_of_the_universe/
Another problem is that no civilization can be sure that it knows how and when the universe will end. For example, there is a Big Rip theory or risks of false vacuum decay.
So its main goal would be finding the ways to prevent the death of the universe or to survive it. And some of the ways may require earlier actions. I explored the ways to survive the end of the universe here: http://lesswrong.com/lw/mfa/a_roadmap_how_to_survive_the_end_of_the_universe/