Considering Season 7 ended with the wall collapsing, perhaps the crew was filming the direct aftermath, focusing on the Night’s Watch.
If that’s not the case, though, how the hell did Edd survive the White Walkers going through them into Westeros?
That scene, of course, could show any number of things, but with Crompton back on set after only showing up for a brief appearance in the Season 7 premiere, it sounds like they were filming something specific to the Night’s Watch.
Ben Crompton’s humorous story to the Metro possibly has some buried interest, in that whatever scene that was being filmed last week was apparently something spoilery enough to provoke everyone’s worry that a drone might have captured it.