It's a new shot added to the recently released trailer for the new Trek movie. Seeing an actor in 2008 playing an elderly version of a character he first played in 1964 is fairly unique in itself. What strikes me first is how very old he looks, but then I look things up on the interwebs and realise he hasn't appeared on screen as the character since 1991. That's an amazing 17 years ago.
As for the trailer itself (HD versions here) it's a strange mixture of homage and newness pitched primarily at a mainstream movie audience. I expect they're hoping, as with the revamped Doctor Who, that any lingering lack of coolness surrounding Trek will have faded with time (notwithstanding the near saturation screening of modern Trek shows in the intervening years). Despite a few moments of more widespread appeal, like The Voyage Home, Trek has always been a fairly niche property so they're clearly pitching at a bigger audience of non-fans who have a nostalgic fondness for the '60s show but aren't that familiar with later incarnations.
What that means is a film that looks high budget, action oriented, with a youngish cast, plenty of humour and only a passing resemblance to the original show. Probably wisely they've opted to keep the general look of the costumes and the core characters but little else. The cast seem okay, aping the original actors to greater or lesser degrees: on the one had is Karl Urban practically impersonating DeForest Kelley as McCoy, and on the other Simon Pegg seems like Simon Pegg with a Scottish accent. But that's probably just because he's so familiar. Likewise Zachary Quinto looks like Sylar dressed for Halloween.
It's hard to deny that it looks interesting, but although I'm keen to see it I think my main reason is less excitement and more a burning curiosity to see what they've done with the concept. I really don't know whether it'll be any good, but I really do want to find out.