Why were air-forces often eventually made a separate branch[1][2] from the land- and, if applicable[3], water-forces?
No realistic leader has yet created a space-force(!), but it's technically a different theatre of influence. Drone use might initially be easier to keep as subsets of the main services, each handling UAVs, USVs and (perhaps) ULVs directly, but there could be an argument for merging the shared expertise/elements.
(Doesn't stop there being still an Army Air Corps and Fleet Air Arm, in the UK, and I'm not familiar with US structure,save that US Marine Corps has planes, trains boats and automobiles armoured vehicles.)
AI and electronic stuff I'd say is GCHQ/No Such Agency territory, but there'd be collaboration and coordination with other same-nation (or allied) three-'letter' agencies and all around right now (the ability to properly collaborate/coordinate between various arms and agencies is a perceived failing of Russia's efforts). And it'd be no different coordinating hypothetical DroneForce activities with other branches as a proper inter-service coordination of service-specific drones, etc. Maybe better. Not knowing the suggested scope, I'd have personally said advanced militarised AI stuff might be better kept to the Intelligence (and/or Logistics) groupings/off-shoots, but I'd say that there's arguments for (and against) pooling remotely-piloted (even semi-autonomous) vehicles of all types together with strong liasing through to the conventional forces that then rely on them (including cross-medium, as the army can obviously make use of aerial drones and indeed scenarios where all services might use all medium-specific drones are readily apparent).
...well, just saying that wiser men(/women) than I might have good reason for trying to rearrange the umbrellas. Or it could be a Hail Mary, that won't benefit the situation in the short-/medium-term, but unless it turns out that we're best off considering something like Space Marines and Everybody Else Force as the best future optimum split then I think it has wings(/fins/legs/drills/teleporters) as an idea.
[1] Royal Flying Corps + Royal Naval Air Service -> Royal Air Force in 1918
[2] Aeronautical Division, Signal Corps (up to 1914) -> {several intermediate changes, still nominally within US Army} -> (from 1947 onwards) US Air Force as a 'third service'.
[3] Even landlocked countries find it applicable, as riverine/lacine, or at least a holdover from when they were not landlocked.