None of the tours come with front of the line access.
Disney does offer VIP Tour services for $85 per hour with a five hour minimum.
Your guide does use their knowledge of the fast pass system and of the park in general to maximize your time. FOL is neither offered nor available.
I've read that this particular tour involves very short waits because your guide is basically planning out your time in the parks based on info they request from you before the tour.
When I went of the Keys to the Kingdom tour in January we went on the Jungle Cruise, Haunted Mansion, and Pirates of the Carribbean and got bumped to the front of the line (or very close to the front of the line) for each ride.
They do not "sell" the KTTK tour as a FOTL type tour - but I'm assuming since they have a schedule to make you probably get treated like you have a fastpass. You only do 3 or 4 rides -from my understanding - so it's not like you'd do that just to skip lines!
We're taking if in June and I can't wait! I've waited YEARS for my DD to be old enough to go on it!