According to the patch notes, the following traits have been updated: Bookworm, Cheerful, Clumsy, Genius, Gloomy, Glutton, Good, Goofball, Hates Children, Hot-Headed, Jealous, Mean, Neat, Noncommitta...
I haven't checked the traits in my game, but from what I've seen in this thread, I have a feeling there wouldn't be much difference. EA promised to improve the traits, not leave them useless.