The Galaxy unfortunately is still in majority undiscovered and with the level of our technology might still be for the centuries to come. When the Gateway project was being constructed, the scientist calculated and predicted that several areas could have an M class planets and it would be possible to send the reminiscence of the fleet, and settle them in safety.
The Gateway project was designed to allow the transportation in mass of the remains of the 9th fleet to a unexplored area of space to continue the fight. The image on the right is of the Quadrants that existed in the 24th Century. The map on the left is the current situation of the Fleet and the New Alliance. With the new quantum slipstream drive, we will then cover more ground, and hopefully discover new friends and allies.