Nukes are about to emerge as a significant theme I think, something that was foreshadowed in Episode 4 of Unidentified, where the UAPs were said to be following our "Nuclear powered" fleets, even to the Middle East. It seemed like a throwaway line, but I think it was one of the most significant pieces of the whole program. The preview made it clear as well.

If you listen to Tom DeLonge on Coast to Coast from back in 2016, the nuclear theme emerges. Note that the word "threat" is being thrown around a lot ( Advanced Aerospace Threat Identification Program). The "others" do not seem to be friendly and he returns to the theme in his 2017 appearance on the same radio show.

Of course, those shows were before the launch of TTSA, so his ideas may not be fully formed, but there seems to be a fairly disturbing narrative forming that may be more Independence Day than ET.