PCT is taken when your trying to start your natural testosterone production. I personally have not done TRT, but what you are talking about is what they refer to blasting and cruzing. And considering your going back to your TRT once the cycle is done I don't think you need a PCT. BUT that question is better answered by those who actually do TRT and cycles and we have a few of them here so I will leave that answer to them.
TRT means no PCT. So when you finished the cycle, just return to your TRT protocol. While on cycle, you might consider using HCG at 500-1000 iu per week, split into 2 doses (250 2x/week or 500 iu 2x/week). HCG is primarily to keep your boys bouncing.