Judging from the feedback snapshot and the recent interview, the rather buggy car traffic was not mentioned. I find it to be a big immersion killer (even more so than the big trees) and great looking car traffic a very strong immersion enhancer, especially at night. 

Wasnt live ship traffic in the works as well?

Downgrades Ubisoft Style! Must be a French thing (j/k of course)

I think there should be much more cars (somehow I don't believe such small simple objects act as FPS killers), but I mean passenger cars - there is too much trucks and coaches, I guess. Another VERY IMPORTANT thing is their speed. ASOBO, please slow them down a bit! All those vehicles look like they run 100 km/h or more wherever they go...