The reapers have returned from dark space. With Earth under attack and the mass relays in a state of chaos from refugees and the councils fleet engaging reaper forces the galaxy is a mess. The outcome is unknown, the warfare is devastating. The galaxy will never be the same.
More information to come tomorrow on the .4.5 patch but this will replace Earth until we begin working on the Reapers.
Oooohhhhhdaaaang! That looks awesome!