As large maps can suffer from floating point accuracy problems, are there any plans to add some sort of streaming system to terrain maps, where the world origin is reset to zero when the player enters a new section/zone, as in Unreal Engine 4?
CryEngine was also going to have a similar feature added (called segmented worlds), but I'm not sure if that ever happened for public releases.
Populating such large areas should be much easier - even for smaller teams - with Leadwerk's procedural vegetation system.