Yes.
But still even the side part of the mask was not visible the upper lock should be (Like the image you posted in ROTJ)
This lock part almost embraces the top oh vader's head. :)
I dont even try to think that ady will do such a change :P
Also for the visible arm discussion.. here is an attempt.
I tried to fix most of the surrounding problems too
I like the new details on vader btw. Less dark areas :D
-Angel