Note: By the way, this is InTeRxFLaMeZz but I changed my name on this account so don't think I stole this post without credit because in reality it is actually my own personal suggestion and idea.
Suggestion: I really enjoyed having a community map project in Battlefield 4 and I'd like to see one in Battlefield 1 too. I understand that there's not much people working on this game anymore but 7 months is enough time to create 1 map for the community. Anyways, let's get into the map itself.
Map: Vimy Ridge would be a great community map project map and here's a reason why. Not only we will get a Canadian faction to the game but I also believe that Vimy Ridge could go with Passchendaele and become an Operation as the Canadian Expeditionary Force participated in Battle of Passchendaele.
Faction: You may think that a Canadian faction would be a lot of work, but in reality it's not that hard as you think because of one simple reason. The Canadian uniforms were almost identical to British ones which means that only few changes would need to be made. As usual, the player models would be taken from other faction and then edited like with previous DLC factions in the game.
Voice acting doesn't matter considering the Australian Soldier and the Maori from Turning Tides didn't have their own seperate voice acting which means that it isn't so important.
Map Design: So I found this 3D Render of a Vimy Ridge map and how it could look like in Battlefield 1. Of course, cover like trenches will need to be added but this is the basic map design without any cover. I found this on reddit and I'll credit the person who made it down below, along with a link to the reddit post where I found it.