If they ever do an uber-mega deluxe edition, they should CGI some points on his ears.
It's a cool idea, but it contradicts the information provided in the Voyager
episode "Flashback." Tuvok's initial Starfleet posting was aboard the Excelsior
. There's no mention of his serving aboard the Enterprise
, and as less than a year had passed since the events of The Undiscovered Country
, he would almost certainly have been on Excelsior
. He certainly could have been playing another Vulcan character, however. Perhaps Tuvok has a long-lost identical twin.