DEFINE YOUR LIFESTYLE
Unlock new personality and relationship effects with the introduction of Lifestyles and Sentiments. Lifestyles manifest in response to your Sim’s actions and habits, changing their behaviors appropriately. Similarly, shared experiences inspire Sentiments and have a lasting impact on Sims’ relationships to each other, affecting their social interactions.
I mean to me that sounds very general and not very pack specific. Also it sounds like a pretty big update to the personalities. If it isn't then this description right here would be really misleading.
