Hitech NEVER gives out information like this about anything that is in the works for the game. The only time you get info is when it gets close to being added the the game like the Mossie that is on the main Aces High page (that is a new plane btw, not a redo of an old one). I'm sure we'll see more new planes before the old ones are finished being updated.
You'll just have to wait like everyone else.
There's also way more tanks that need to be added too, which should already be in the game such as the Panther, Tiger II, King Tiger, Perishing, etc. Only about 8 in AH and 4 of them are perked. The fighters I can wait, but as for gving and such, the only thing I'm seeing on the battlefield is that M4/76 which has way to powerful of a gun, no way it should be one shotting people from over 2000 yrds away or doing serious damage, in real life the gun would have to be at point blank range, about 1000 yrds in to do that.