A lot of fuss was made about how Y'shtola was different now and how she had to have new clothes. I admit that could be for plot reasons which are nothing to do with jobs/classes/specialisations. Then a similar thing happened with Thancred where it's pointed out that he's lost the ability to cast his magic but his melee skills have gone nuts. Krile seems to be a 'Seer' which could be a new class or a specialisation of WHM. I'm really not sure on that one. Especially as Y'shtola seemed to be a conjurer before and Krile uses an orb