Interesting! I really hope this is a sign that there will be different nations represented through customisation options under the major factions. Someone earlier posited that Canadians could be represented under the British faction by small uniform changes, such as a different patch. Flipping the slouch on a hat may be in line with this.
Soldier customisation would make the game much more immersive for me. Even if they only allow us to alter the soldiers themselves, rather than what we’re talking about with altered uniforms for different nations. Sometimes I may want to play as a Sikh medic, but if I am enjoying playing as him it is a bit of a shame that I can no longer roleplay that character if I feel like playing scout for a bit. I would want to be that Sikh man regardless of his current role in the battle. I don’t know if many people care about this, but a consistent in-game avatar is something I find more immersive and adds to my enjoyment and investment in a game.