I am very excited about the new expansion. However, I can understand the way you feel about it as well.
I would like a preview of the perk system. I hope it won't turn out as weird as the vampire perk system. I am excited about the new items-I always love getting new clothing and items! And I have a few custom-made famous sims that I made myself, and I think this x-pack will suit them well.
I'm NOT looking forward to updating all of my script and core mods, careers, and custom traits, however.