OK, it's only a frame, but it's contained in this new promo for the sixth and final season of ABC's Lost, and it's actually the first glimpse we've gotten so far of the season; see it below. (Spoiler!)
The frame, which occurs at 0:15 into the promo below, reveals Claire (Emilie de Ravin) wielding some kind of long gun. We've known for a while she'll be back in the show this season.
Meanwhile, The Hollywod Reporter says that Titus Welliver, who played the mysterious nemesis to Jacob in ABC's Lost, is set to reprise his role in the second part of Lost's sixth and final season, which premieres Feb. 2.
(Thanks to E! Online for the heads-up.)