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.
The quarian frigate is being rolled as a anti-fighter support ship, this will be its replacement. The Exogeni colony freighter, the ship itself will be sacrificed once it begins colonization.