It would not do justice to David Simon's vision for "The Wire" if:
(a) Jimmy McNulty isn't fired, and/or prosecuted;
(b) Marlo doesn't prevail, somehow (although the teaser for the final episode suggests that he's shot in the head)
(c) the Sun somehow escapes the plagiarism scandal
(d) some bit, beloved character doesn't celebrate some, small victory as the end credits appear over the music...
BTW: doesn't it seem like we'll learn that Maurice Levy's source in City Hall is none other than McNulty's pal, Judge Daniel Phelan?