I think two of those are the new ones and the other two are just slightly different translated ones from ones we already have so 'Carefree' is probably 'Lazy' and 'Smug' is most likely 'Snooty'. But perhaps Mature and Brisk are total new ones? I'm not sure
the personalities that I've heard about so far are smug, energetic, stubborn, smart, mature, normal and airhead. some or most of those are likely different ways to describe personalities we knew about already though. also, I'm not sure how reliable my source for this is.
Visit my dream towns!
Angie from Maplerow, Ranae from Wayfield and Olive from Yorkwood