The future of military tech is supposedly hypersonic missiles, stealth drones and suicide drones. I'm going with large-scale air force experiments with a new line of drones, possibly with a 'psy-op' angle. While the Democrats sabotage everything possible for the upcoming Orange-Man-Bad presidency (such as selling off portions of the border wall), they want to distract people with 'mysterious' unidentified aerial phenomena.
There be aliens/Iranian motherships launching drone squadrons/Chinese stealth balloons afoot.
(I haven't really spent much thought on this. In case you haven't noticed. ;) )
This paper keeps getting spammed on 4chan:
https://www.scirp.org/journal/paperinformation?paperid=131506
(tl;dr some researchers theorizing that there is an unidentified plasma life form that lives in the upper atmosphere and occasionally dips low enough that we see them - this would also encompass "ball lightning" phenomena which are apparently still not fully understood)
Two categories of sightings have been observed: drones and orbs. Many orbs turn out to be chinese lanterns or bokeh effect from distant drones and aircraft, but assuming any of the orbs are real and something novel, the non-civ drones could either be studying them or part of the gaslighting/disinformation campaign.