American and Soviets for the Allied forces and Italian(?) and Japanese(?) for the Axis?
But I highly doubt any faction other than Americans would be released within the lifespan of BFV.
Sinc DICE wants to follow the war cronologically I would assume the French will be next.
After that Russians and after that Muricans
No idea an the axis side… probably only Japan and Italy
i would put the Russians in axis, they were brutal to their own people along with the Germans and the polish. But most likely the below…
Allies:
British( Australians and Canadians are practically the same thing/ uniforms and gear)
French(I wouldn’t say army cause they got crushed but more of the resistance probably.)
Americans
Russians( if you consider them allies)
Axis:
Germans
Japanese
Italians
Allied Forces (US + UK)
Axis (Germany)
USSR
JAPAN
I would want the following considering we are technically in 1940 right now in Tides of War:
1941:
New Factions - USSR
Theaters - Russia (Barbarossa), North Africa
1942:
New Factions - US, Japan
Theaters - Russia (Crimea/Caucasus), Pacific (Wake/Soloman Islands),
1943:
New Factions - Italy
Theaters - Russia (Kursk Salient), Italy (Husky/Anzio/Monte Cassino), Pacific (Tarawa/Marshall Islands)
1944:
New Factions - NONE
Theaters - Western Europe (Overlord, Market Garden, Bulge)
1945:
New Factions - NONE
Theaters - Europe (Remagen/Seelow Heights/Berlin), Pacific (Iwo Jima/Okinawa)
In Summary: 4 Factions, approximately 18-20 maps 
Canada.
I bet the Japanese will end up being the best faction to play.
Finland vs. Soviets.
LOLOLOLOLOL good one… Americans will be by a landslide. If you’re the you’ll need to kill yourself by running into enemy fire and crashing your plane into a single player all game long.
Yep. The Finnish as a faction could well be a thing. It would be another untold story from WW2 for sure.
Will be interesting to see when they introduce the American faction
A Winter War map set / factions would be cool, but I feel like for hype this game has to start moving into the meat and potatoes of the war… Not sure adding the Finns at this point is going to make more people jump out of their seats and buy the game. Too bad they didn’t spread the love a bit more for early war factions like the Finns, Poles, French, etc. Would have been cool to even have some Spanish Civil War considering it was the testing bed for the Fascists and Communists…
This game has so much potential for content, I do kind of wish it would become a proper “game as a service” and just become a persistent title they continue to add content to in parallel with other future battlefields. I’d fork out some additional cash every once in a while for “premium” to support that if it meant we got ALL of WW2…
I would love to see the USSR in the Battle of Stalingrad and the Battle of Kursk
To me it will be a must… imperative.
They could copy/paste the italians from BF1. Like they did with weapons etc…