Turns out they were in fact shield gates;
“It’s part of their military industrial complex. It’s not necessarily where the Death Star was constructed, but a lot of military research goes on there,” Swartz says. “That’s why Krennic spends time there. It’s the site of research, structural engineering, munitions and manufacturing, all rolled into one facility.”
Ok that’s pretty interesting and leading statement that the Death Star does not orbit Scarif at all by the sounds of it.
But If you think about the original leaked teaser with the tie fighter that flew over the jungle that was “Scarif”.
This is not Scarif so where is it?
The other Planet what is it Eadu? That has rings visible in the sky… When Krenicks ship flys over the beach.
Could this be that Blue misty Planet (Malpaz?) in the day time?
Or is this another planet all together?
Or is it indeed Scarif?