Seems to me the framegrab I saw of the unhelmeted STiD Klingon he had pointed ears. The promo for "Next issue" (ie. #25) in the back of the current Gorn comic ("IDW Ongoing" #24) has a drawn version of a similar Klingon, complete with cranial bone piercings, pale eyes and a pirate earring. Apart from the pointed ear, there's really not too much different compared to the wide range of canonical Klingon features we've seen from ST:TMP to "Enterprise".
IIRC, Valkris was drawn with a pointed ear in DC Comics' ST III adaptation way back when.