With all this talk stemming from Nemesis Reborn, Project Ocean and Forbidden Valley as as whole, naturally there's been discussion about integrating Air/Galactica into the new military story. Personally, I think giving it a Phalanx theme would be detrimental to the ride as a whole.
The entire point of Air was for there to be a thrill coaster that wasn't intimidating - more inviting, joyful, and positive. The light blue track, the bubbly music, sleek futuristic buildings - the overall atmosphere was very welcoming. As a kid who suffered greatly from anxiety around doing the big rides, Air was seen as far more accessible - not only due to the layout, but the style of the area not being as intense as Nemesis or Oblivion.
Granted, the ride was never really decorated, but the idea of the "oasis" is pretty cool and naturally leaves a lot of room for expansion. Get some fountains in, bolster the rockwork in a few places, open the station back up, and the ride itself is already closer to what was promised back in 2002. Take it a bit further - have a small beach area by the drop with some benches and a little water play area. Kids love running through fountains and being silly!
There's an auroa about the military that they strip away peoples personalities to make them tough soldiers - I could see this happening if the Phalanx took control of the ride. There's been pages of discussion over many years about how Merlin's love for painting things black and putting tanks/helicopters around the area doesn't do a lot for people. Personally I haven't seen the updated Nemesis as I'm very hesitant to see it with this new army overlay. And if you're really anxious about it fitting in with the area, just keep the original idea of something like "the safe haven amongst the chaos, where peace reigns - a place so pure that not even the alien could infect it".
Or just lean more into the sci-fi aspect with Galactica. Just please don't homogenise the ride. We've had enough of dark scary themes, and taking the one positive theme away would be really saddening and contradict the design.