A whole bunch of comics previews have surfaced:
Artist Mike Hawthorne has released another preview-page from the Alien Spotlight issue on Tribbles he is illustrating. All Klingons on this page:And colourist John Hunt has release an image, presumably a cover, by Stephen Molnar on his deviantART. He hasn't specified what it's for, but the artist is the same as the Mission's End miniseries.
UPDATE: And another preview (half of a double page spread) from the third issue of John Byrne's Crew:
And from TrekMovie, another preview panel from Countdown, featuring some rather Scimitarish ships...