I think that we will be very surprised when and if we ever find out. I wouldn't be surprised if it is someone quite famous. Any guesses? My gut feeling is that it is someone who is supposed to be "dead":
JFK jr Tom Clancy (My No 1 choice) John McAfee
Any thoughts?
No
No? Care to explain this?
He's a traveler of both time and space !
KEK! Well, since you bring up THE Q, then Revodude's comment is correct.