No, not really. Hangar Module is a concept demo. Nothing of it - except *maybe* for the ship models is going to be used in the game. DMF is less so (of one unconnected product), but we will have to see how it plays out.
No, not really. The Hangar Module is an important part of the finished game and will be included in all future alphas, betas and finished versions. It's where your ships are parked, where you outfit them, where you repair them, where you plan your missions with the hangar computers, where you use the simulator, where you can invite friends for a chat or meetings and look at your ships (later also take them with you out flying), and where you login to climb into your ship before take off.
So it's no concept demo.