metalmunki said:

I prefer DS2 being around Endor's moon where it is. It makes more sense that it's being built somewhere 'hidden', and that it's a surprise that the Emperor is personally showing up ("The Emperor is coming here!?")

There is just no way the Rebel fleet would do a direct assault on the Coruscant system.

What I will say is, I'd like to see Endor itself more prominent in the forest moon's sky and perhaps in some of the space shots, and the DS2 being more obviously in the moon's orbit in some of the shots also.

I strongly agree with all of this.

The construction of the Death Star should remain hidden and isolated as it's being constructed. Sure would be great to see the planet Endor in certain instances too, which, has a vertical ring belt (I think?).

I would like to also see the Imperial base on the moon expanded with a large mining colony and construction plant there. They're extracting the moon's resources/metals and creating the pieces necessary for the new Death Star. These pieces are brought out by multiple cargo ships that go to the orbiting station and return for a reload. This can be very easily established while our heroes in the transport make a pass before landing on the outskirts (very similar to the arrival on Pandora in Avatar).