Spiel mit dem Feuer ? Was macht diese Erweiterung mit dem Expertenspiel?

About Race for the Galaxy: Expansion and Brinkmanship, from BoardGameGeek:

As empires expand into space, they encounter mysterious alien artifacts and races uplifted to sentience eons ago. Meanwhile, Imperium factions provoke other worlds to ally and rebel as the galaxy drifts towards war. Can you build the most prosperous space empire in these challenging times? Expansion and Brinkmanship bundles 3 previously published expansions, The Gathering Storm, Rebel vs Imperium, and The Brink of War into a single product, compatible with 1st and 2nd Edition Race for the Galaxy.