Those Star Trek Into Darkness deleted scenes that were removed from the DVD/Blu-ray release in order to make you buy a second better (or decent) Collector's Edition release later are now available for your perusal. They fill more than a few of STiD's plotholes, including why Carol Marcus is suddenly British.
Kirk and Pike's discussion:
A Klingon conversation:
Marcus receives a call:
Pike gets shot (extended version):
Carol explains her accent:
Scotty sneaks onto the Killerprise:
Kirk's meets with Mickey from Doctor Who's family:
Klingon dance party:
H/t to Aki!