We didn't have AP Physics B this past year. Enrollment sign-ups were insufficient for the school to run the course.
Recently-revealed evidence suggests that the dearth of sign-ups might have been related to the grading practices followed by colleagues who teach AP Biology, AP Chemistry, and AP Environmental Science. The case was laid out in a previous post.
Students have now signed up for their Fall classes. I have been informed that there is sufficient enrollment for the school to run both new AP Physics courses: AP Physics1 and AP Physics 2, in addition to three sections of Physics.
It's the "nightmare" I hoped for: three different courses to prepare ("three preps" as we say in the faculty lounge). AP Physics 1 and AP Physics 2 are brand-new, never-been-taught courses, so it'll be like seating thread-forming screws. To make matters worse, I intend to redesign our Physics course, aligning it more closely to Next Generation Science Standards and to our adopted textbook.
Here's some information on the new AP Physics 1 and AP Physics 2 courses being launched in 2014-15.