Agreed that this would be great, just as the battle droid was great. U-Wings parked in the Yavin hangar (though not flying out to combat, wrong type of mission for that) would be great too.
I like all of this. But, one could theorize that they only had two U-Wings and both went down at Scarif.
One could also theorize that all K2 droids were removed from Imperial Service immediately following review of footage from Jedha and Scarif demonstrating they can easily be reprogrammed and are thus a security risk.
I mean, one could
Or that we don’t see them in the 3 hallways we see in ANH.
Hah, now there’s a ridiculous, unlikely, improbable scenario.