Its to early to judge for Sure.
1. There could possible tons of new features that aren't been revealed yet.
2. The fame and Reputation system is not yet shown.
3. The depth of the content is still unknown.
4. EDIT- Realized that they also haven't reveled any new aspirations, traits and even skills yet.
For that said I still think it is worth becoming an Expansion Pack. IF this was a gamepack, only the acting career will be here not including the fame and reputation system, or vice versa. Heck the Fame might even be different than the reputation system. We still don't know. But why I think it is an EP type is because of the content. This is something that can't fit into a gamepack. And Literary I enjoy having the team focus on one big feature and expanding its theme to its fullest potential in an Expansion Pack rather than cramming all of the features they can at one pack as many as possible. If all of the content here are in-depth than its not just worth being an Expansion Pack, but also its asking price. I am still waiting for some information to be revealed.
