I have a few thoughts on this. First off the lore would not fit if you could start the game as Rogue class...if the guild was secret then it is still secret until you get to that point in the story. I can see them doing something crazy and letting people do it though to drive new players though (bad idea in my opinion). They really need to lock this behind story as "good for the game" to limit how many Ninjas are running around (there is going to be enough of us already). Ninja needs to be a reward for those of us that have put in the work and progressed to that point...it should not be a "Give Me" job and not earned. I really think what ever the cross classes are you should also have to have those Jobs to 50 to tightened it up even more. I really hope that they implement this Job the right way and don't mess it up.