It is really strange that they took only 5 samples, but it is what it is. I am sorry that you are facing PC but there are many ways to combat it .
Yes, you need to wait for scan results and hopefully they did PSMA CT . Did they do Decipher test on your samples ?
Also, if in your pathology report you see anywhere mentioning of cribriform cells or intraductal (IDC) formations it might be better to have surgery in case that cancer is still contained in a gland.
BUT again, at the end you will decide what is the best course of action for you personally. Every case is different and every person has their own preferences and /or priorities.