I want to pick up Harry Potter and the Chambers of Secrets again and I was wondering if there are new strats.

Well there is a little new Forbidden Forest strat at the Bridge

There is also a strat at Boomslang skin where you build those mushrooms on eachother to jump up to the enterence of the garden house

The new Forbidden Forest strat is pretty crazy yes.

The Boomslang strat would be perfect if there was a platform where you can jump on to let the mushroom fall but there isn't.