So only really Japan, France and Israel is waiting on “US helis” and China and Israel on “soviet helis” and out of those, they have non-US/USSR options available except for Israel it seems
Eurocopter = Airbus/Europe
Westland = British
Agusta = Italian
Leonardo = Anglo-Italian
Sikorsky = US
It has a few, but it also has a load of its own stuff as well. More than enough for a decently sized tree without adding a single US license built aircraft
So… Its a License built harrier that the US modified? Just like how its the Augusta-bell AB 212 which the Italians modified extensively to fit their needs
The US and USSR have around double the number of Helis everyone else has at the moment. Its not unreasonable to put them on pause for an update or 3 so that everyone else can get new helis. Besides, until MMW is added. There is relatively minimal value from adding other variants to both as far as I am aware, apart from maybe spike equipped AH-64E. (I think JAGM-ER is too good if it has 16km range)
They can get the Japanese SH-60, Thai EC AS550 C3, maybe Thai AH-6 pending on armament, and Thai AH-1F. Still very limited though. There’s also other nations they will likely add.
Edit: They could add Singaporean AH-64D, Indonesian AH-64E, and Indonesian Mi-35P as well.
Indonesian AH-64E Guardian firing an AGM-114R Hellfire missile.
Mostly in the ASW kit, but the better/clearer example might be the Augusta Bell AB.204B which was an Huey
Although similar to the UH-1B, the Italian version, more specifically the AB-204B would not be a carbon copy of the American helicopter. Differences included a new propulsion system, which instead of the standard one that was used, it would be instead replaced with a De.Havilland Gnome H.1200
But you are missing the point. Yes you have loads of options left to add. Everyone does, But they dont add 1 heli per nation every update. Its usually just a handful. Storm Warning added a single dutch AH-64D. If we assume that they average, say 3 per update. Then focus on the 8 nations that have half the number of aircraft as the US/USSR for a few updates.