Player stations will have the ability to have safezones, though there will be some way (details yet to be determined) to bring them down with an extended siege. No news of any special station-mounted weapons so far. Since they don't have to worry about structural stress from acceleration, they should be able to mount much better-protected turrets with more firepower compared to ships, but being a stationary target is a big disadvantage, so I expect defending ships to play a key role in station defense.