A devastatingly handsome tipster has sent us pictures of the unreleased Green Lantern Extended Cut Blu-Ray combo pack due out on October 14, and wouldn't you know it, right there on the cover is a sticker proclaiming yet another Batman: Arkham City costume.
For those unfamiliar with the Green Lantern mythos, the Sinestro Corps are a team of baddies lead by the ex-Green Lantern Corps member Sinestro (natch). The Sinestro Corps did, at one point, attempt to recruit Batman into their ranks, so we suppose this Sinestro Corps skin isn't entirely non-cannon.
Update 1: According to our source, the skin-packed copies of Green Lantern will be limited edition
Update 2: Best Buy exclusivity is, according to our source, no longer on the table. While they did not name specifics, "certain other stores" will also be receiving costumed copies.