True enough, although given how slowly Vulcans age, he'd probably look the same in 2255 as in 2267. I just am curious about his role, given his antipathy toward his son's joining Starfleet. He's also credited as an astrophysicist, which seems a new detail. Thus far his talent has seemed to be diplomacy. Of course, Spock started as a science officer, moved to command, and then went into diplomacy himself. So, that's not particularly unusual. I would expect that Sarek would be a civilian scientist though.