I was going to throw in a gloomy bombshell and say it's entirely possible the new polar bear is simply a female counterpart to e.g. buffalo or raccoon, that gets the same pure 3rd job skills. But then I see that the hype page will include 'skill info' so maybe, just maybe, they're making a whole new character class.
Random remark: how can a girl planning to do research in the Arctic go about in such a short skirt? Sure Snow Hill's snow is fake but it's still cold there...
I'm looking forward to seeing what the new magic char will be (if there is one).
Lv. 22x SM; lv. 25x (mad) Scientist
Amatsubame, Lv. 68 Chaosmage
Lv. 85 Elf Loremaster