Cheftim - to clarify, he will not just go off "cold turkey" and stop taking all chemicals right after the O. What he will likely do, is start to decrease the dosages, and start to ease off the heavy training, start to ease the calorie intake, and likely increase or maintain aerobic exercise.
I would expect his weight to gradually come down from 260-270 at the O, down to around 220 over the next year. Within half a year, he will likely be only taking maintence dosages of test and GH, and perhaps within a year, I would expect he would ideally want to be off entirely. He is a smart guy, so the reduction would likely be medically supervised, with regular tests done to make sure key indicators (cholesterol, insulin, testosterone etc) are all OK. If he does it gradually, and sensibly, he may actually come out of this looking pretty good. That is the plan anyhow.
But anyhow, for now, I am just looking forward to how he will look when he competes. He should come in looking pretty awesome and massive, (and hopefully ripped).