Nope sorry but that person is not a novice at this point. A mentor is there to teach novices how to play the game pre HW. After this point it is up to the player to actually start learning for themselves. Prior to this mentors should point them in the direction of guides for dungeons and their class. They should also help them out with dungeons including explaining the mechanics and answer any questions best they can or at the very least point them in the right direction.
Now as for returning players mentors should help them find their feet again. Now come expansion things will change a little as I expect novice status to be expanded to include HW. As i think they will do this with the addition of the jump potions.
