-random Memo coming in-
It does sound like an interesting theory!
Though, Rose was mainly appointed to travel to another dimension by the Queen/Empress due to the fact that Elrios disaster with the El was causing a disturbance in Rose dimension.
So you could say, all Roses have the same path up until Rose arriving to Elrios. From there onwards you can assume that there are multiple parallel universes where in each she advances to her current 4 jobs. Also considering she has 4 jobs that'd would make another bundle of universes due to having to fit in a 4th job while everyone has only 3 jobs.
Also, Elsword Lord Knight was trained by Vanessa of Belder Knights not by Raven Blade Master