I would love to see NO NEW CONTENT.
They really need to fix the stuff they already have. A new version that only addresses BR's, MMing, FM's, DM's etc. with no new content would be awesome.
IDK about you, but I can wait for new vehicles. I want the shit we have now to work right.
On the subject of choppers: The Huey is too advanced and is Vietnam era. There are however a lot of great choppers from the Korean era. (the first helicopter war)
Piasecki PV-3 and HRP-1 flying bananas, Sikorsky S 5F and S-55, and the venerable Bell 47-G. Now those would be too cool. Since there are already many Korean era planes in game, it only stands to reason that choppers from the same era be added along with a Korean War only mode.