It should have a map editor.

Btw, are there any news about hen it's done and is it confirmed that helicopters will be controllable ?
Dose it has an official site ?

The site is in development and the final release date will be announced soon. The helicopters are not controllable, only act as air support.

Too bad. It could have been nice to have controlled hellis. Just one more question, have 1C Ino-Co tried to work on the helicopter control, as would it be possible to make hellis controled by player mutch easily as airplanes ?

I'll ask the devs about it, and Vietnam is developed by our internal team, not 1C Ino-Co.

Oh sorry, my mistake. But then I am not well informed. What is the difference between Ino-Co and internal team ?

These are different teams, internal team being a part of 1C itself.

As far as I understand, this game will feature a mp-coop mode (which is awesome) but no "regular" mp-modes (i.ex. 1v1), right?

Well its not going to be regular like Men of War otherwise no one would bother with it.

Can you combine forces from earlier MOW titles with the Vietnam ones? Like Have American forces from 68 vs Germans in a skirmish mode?? That'd be fun.

There is no skirmish mode.

You can take units from Vietnam and put them in a Men of War mod however, and make your own maps.