MH152 - my understanding is PPL is safe (I'm assumin that has been actually issued already!!), Night qualification is safe (and thankyou for calling it a "qualification" not a "rating").
CPL test pass is valid 12 months from date of test.
Multi Engine Class rating is valid 6, I say again - SIX months from date of test.
I have personal knowledge of numerous that have class rating refused after six months, I know of two that have had to resit the CPL skill test after twelve months.