I really hope to see some integration with free-form space flight and the Fleet. Imagine the enemy has come to assault your fleet - you see the action just out the windows! You'd run to your hangar, hop into your ship with your friends, and gun 'em all down. Land in the enemy battleship and slash your way into the main systems, and send 'em packing.
creating a second time of pvp game, you got warzones, now you get space battles. Although this time it doesn't have to be in a separate instance, would be nice if we could fly in our ships and do raid attacks on Republic/Imperial bases. Fleet armada.
So each faction has moving fleet armadas all over the place, and you can join a space battle when you travel to a fleet armada. these can be pvE or pvp. i can imagine you can get space ambushes, too.