Almost all the class branches end up as the same Rank 6 classes, if there a way to change this?
Yes. Become rank 4 cirlce 3 or rank 5 circle 2. There are also hidden classes as well as multiple builds.
until rank 6, there are 44 diferent classes, soooo… there’s still 36 classes left. it’s possible that they add some more ranks, at first we tought that the max rank was 10
My guess is that they will add another column to all basic classes.
I just wish there’s a chef-like class as an Alchemist or Squire progression class
they plan on adding more classes, maybe someday we’ll have one 
ehh ill just stay perma archer 
