Well, for now its the same gameplay across all campaigns, only the assets are changing.
*It’s not a dig, I’m not bored yet 
Absolutely, I think we need new nations at some point which are balanced and equal. One of the benefits of Gaijin games is the variety, so new nations will keep the game fresh. For the Allies (Europe only) Britain, France and Poland, for the Axis Italy, Hungry and Romania.
As a Brit, I get the same feeling
Well, Id say Finland should be more prominent than romania or hungary!
Not really, Hungaria can have more unique equipment then Finns, as Finns have Mosins, different version, but still Mosin, few unique weapons and thats is. They used Captured or buyed equipment when it comes to tanks and planes.
Hungary on another hand have its own tank designs and own weapons. Planes would be mix of German and Italian types.
Romania is is just Czech and Germans weapons that we already have in game, in planes too, with some Italian and British desings there.
It would be fabulous to have a Battle of France Campaign with a Netherlands scenario or two. Few people are aware of the amazing delaying action the Dutch made against the German advance. The destruction of at the airfields which crippled the German Airborne capability for the rest of the war, the single company of Dutch marines who held the bridge to Rotterdam for 5 days against the German Airborne and a Division attacking from both sides and the lone anti-tank gun forcing the 9th Panzer Division to retreat at Dordrecht are just a few of the accomplishments of the out-gunned and outnumbered Dutch forces. I highly recommend the website War over Holland - May 1940: the Dutch struggle (http://www.waroverholland.nl/) for anyone interested in learning more.
Ooooops - I forgot to insert : the destruction at the airfields of a huge number of Ju-52 transports.
here are some campaigns I suggest
Yugoslav partisans
Hungary OR Romania
The winter war
Battle of France
Some Norway campaign
Pacific theatre stuff
Problem with new campaigns is that they devide a playerbase. Need unified Queue for all campaigns and ability to somehow apply progress in one to others.