Something like “Rise of the Galaxy” or maybe “Fate of the Galaxy” would probably be a good title for your case, since you seem to be focusing in on the idea of everyone in the galaxy rising up for one last stand.
Those are pretty good. This morning I thought of “Heirs of the Force,” with the last of the old generation of Force sensitives passing on and leaving only the new generation to carry on. The thing I don’t like about it is, while heir technically has nothing to do with bloodlines, it still carries that connotation when bloodlines is something I’ve removed.