Fox has now released the artwork for Vol 3 in conjunction with their press release. It can be seen at the link above. First boxes were red and blue, what color did they choose this time :)
Thanks for the artwork link, Steve! Another beautiful job by the folks at Fox (who would have thunk it 5 year ago?). The pistol might be a tad out of character, as Charlie seemed rarely to use them. But still a nice cover.