I think there is very little that is new. Just shaving, sneaking out and pillow fighting. Everything else seems to be cloned from earlier packs, especially MWS and CL.
Graduation ceremony from MWS wedding ceremony, except now people are standing instead of sitting to watch. Prom party from MWS wedding reception party. Amusement park area from CL public space. Cafeteria food thing from CL barista cart. Cheer leading from CL dancing. Slow dancing is similar to slow dancing in MWS. Promposal from normal wedding proposal.
I like the CAS and BB stuff though as they will go well with stuff from MWS for weddings.