Thanks for posting link. Hopefully further clinical trials will show this as a good possibility, particularly for men where their cancer has advanced.
As regards your own situation, could you ask your onco whether HT would be likely to make determination from the MRI scan less effective? Also, could you ask if scan/appointment could be brought forward? The decision to restart HT can be a difficult decision for the patient, (I have been in this position too but got conflicting advice from different hospitals)
Whatever you decide, I hope it helps with tailoring subsequent treatment which is what is needed.