I'll be very (though pleasantly) surprised if The Best of Times gets played, mainly because a large part of the love for that song seems to be due to Petrucci's incredible solo. Having to listen to 10 minutes of a song just to get to someone else playing that solo seems, I dunno, a little weird to me. To my mind there are far better Portnoy-written tracks which would suit this kind of event better.
As for the above discussion of MP's online shenanigans - I'm one of his devoted 'fanboys' over on his forum, and while I agree that he could sometimes exercise better judgement in how he expresses things, I do think his heart is almost always in the right place (the only times he's totally crossed the line was his outburst at the English hospital and his disgraceful treatment of the young 'drum tech' guy in Manila). He has a huge ego (that's not necessarily a criticism, it's a part of what got DT off the ground), and the bigger the ego the more fragile it is. I get the impression he is still raw about a) DT not putting up a fight to keep him when he gave them his ultimatum, and b) his perception that his importance to the band has been forgotten. I think he sometimes struggles with the reality that other people don't see him as he sees himself.
But despite that, he has far more good qualities than 'bad'. He gets a shit tonne of abuse online (yes, some of it warranted perhaps) and it's to his credit that he seems able to let most of it go. He's an absolutely exceptional live performer, mesmerising to watch, and he does go out of his way to give fans what he believes they want (the rotating sets, the Ytsejam releases, his behaviour at the meet and greets, which in my experience has always been great). I'm happy Mangini is in DT now, I don't want MP to go back (because I love the new incarnation of DT much more than 2005-2009 DT), but I still support what Portnoy is doing because he's a superb drummer and his bands make great music.