Post-AP Classes

The main difference I see between the two schedules is that we’re dropping AP Biology, AP Literature, and AP Calculus altogether, and taking Pre Calc and AP Physics concurrently. Will AP Physics without Pre-Calc be difficult?

Also, I know there was a lot of discussion on another thread about AP Calculus. My school does it differently- AB is taught fall and BC is taught spring, and one cannot take BC without having AB first.