Re: Kate Stewart in Day of the Doctor (SPOILERS!)
Also, given that one of the rumors that circulated TDOTD for a while had her wear the Fourth Doctor's scarf as a gift from the Doctor himself, it might be oddly appropriate for them to have that kind of a mix-up.
"Spock...?" Kirk said, whispering.
"I am... most pleased to see again, Captain" Spock formally replied.
McCoy shook his head in disgust. "Oh, for crying out loud, Spock. Its been eighty years!"
"Seventy eight point four years, Doctor."
The Holy Three meet again, in The Return