As a parent I have found this whole "future grades" thing really confusing
My youngest is now in Uni, her first mocks half way through first year of 6th form, the school report said something like CCC (possibly less, cant remember). When challenged the school said that wasn't what she would get in her A levels but a reflection of where she was (she had a mix of 7s 8s 9s at GCSE), her chosen A level subjects were 9s.
Those "predictions" were really demotivating. Roll forward to UCAS forms and the school put a predicted A*AB - her A level exams didnt go well (long story) but she actually got ABB with A* EPQ
Her younger sister is now first year 6th form and is "predicted" CCDD, from mostly 9s at GCSE. Again devastating to her confidence and plan to apply for Vet Med at AAA this September. When challenged the teachers say AAA is possible . . .