Fair warning:
I'm not overly concerned about following the cannon story. I know Galen has plenty of history in the extended universe, but remember that this adventure is not on rails or scripted in any way. You're not observing events play out like a movie: your characters are actively involved, and can change the course of events in small or large ways.
There's a very real possibility that the leaders of the newborn Rebel Alliance will die, along with their senior aids. If that happens, it will set the rebellion back, possibly by decades. There's also a possibility that you might pull off amazing things here, and set the Rebels up far in advance of where they were at this time according to cannon. It's even mathematically possible (on the order of .000001%) that the Empire might end on this adventure.
The actual outcome fall somewhere on a continuum between those extremes. I have no idea how it is going to turn out (though some endings are more likely than others). Remember my survival guide, and conduct yourselves accordingly.
When I envisioned how this would play out, my crystal ball indicated a strong probability that all of you would be involved. I find it very amusing and quite entertaining that out of all of you, Trax is the only original character picking up this story at the moment.
