It could sound rather bizarre, but I strongly feel this is the less likely time of all for Mike Portnoy to fall back on the habit(s). The man quit smoking (for some kind of people even more difficult to quit than drugs), boozing, drugging, internet omnipresence (which we should admit is a pretty tough feat) and he finally came to overcome, in my opinion, his worst addiction: total control. He's on a roll.
I would be worried if he had stayed with Dream Theater swallowing frustration.
Said that, the homoerotic undertone in this thread is far beyond fascinating.