Rob my advice is to politely but strongly advocate for yourself. Ask questions and push for what you need to know. Most of this information should be available from the MRI and biopsy. You really want to be starting treatment quickly in GPG5.
Prognostic Group 5
At least two of these
Grade Group 4 (Gleason 8 ie 4+4, 3+5, 5+3)
PSA level higher than 20 ng/ml
T stage of 3
Or
Grade Group 5 (Gleason 9 or 10)
I
Or
T stage of 4
On the staging TNM the N could be know only the M would need a bone scan.