No, not yet even in the manga. But I hope they will!
His face
No. It is not shown in the movie
sadly we have not been able too see it yet
I believe that he showed his face to Kisame
Yes he will eventually.
Your Guess is as good as mine.
Grey or White.
No one has ever seen his face, all the pictures circulating are FAKE! Unless you want to count the 'in the anime people' then you could say, Ayame and Teuchi, the father and daughter who run the ramen shop "Ichiraku Ramen" because in episode 101, they did see it.
kakashi chronicles
No, she is dead.
Yes she is dead, but noone knows how.
september 15