Actually, the Battle of Endor is not the end of the Galactic Civil War, it lasted for another 14 years... also Palpatine came back during that time, assuming they are going with that route. There is also the Yuuzhan Vong War and the Legacy Era (of which the original cast would be the appropriate age for), then the later Legacy Era with Cade Skywalker, if that is not good enough. So many options, assuming they look at the EU timeline for ideas.