Zachary Quinto from NBC's hit show Heroes is the new Spock.
JJ Abrams, who is producing the newest Star Trek big screen outing, announced at last weekend's San Diego Comic Con, made clear that Quinto had the role. The new motion picture will be a prequel to the Original Series.
Abrams also addressed the rumors that William Shatner wasn't in the script. "We’re desperately trying to figure out how to fit Shatner, and it needs to be worthy of him and the movie," said Abrams. It's unclear whether or not they are simply trying to cram him into the movie after the Internet outrage of him being left out, or if this was always the plan.
Leonard Nimoy is confirmed as an older Spock, possibly his last appearance putting on the famous ears. Presumably, this will be handled in some sort of framing device, in which Spock remembers the first mission. It's easy to see why it would be hard to fit Shatner into such a scene: he was killed off in Star Trek: Generations and is now floating around in the Nexus.