Ya know, as a fan, I just don't care about the whole blame game and negative stuff any longer. I am sure things were said by MP he regrets, and I am sure the band has said some things (in private, I would guess) they regret. The bottom line is MP is excited about this, and is marketing it as his final time doing (I am assuming here, because I am not quite sure what his new band has in mind) a FULL SET of Dream Theater material (again, assuming his new band might do a couple of DT covers).
The effort he is putting forth is what I remember Mike Portnoy being like. And truth be told, I wish I was able to attend. If I was still living in New York, I'd be there. Period.
What happened between MP and DT sucks. It's clear MP would like to return, but DT don't want him back in the fold. Whatever their reasons are, there's nothing we can do about it. But on a positive note, if MP is going to return playing prog metal again, and DT moves forward, we'll have two hopefully great bands performing Dream Theater material (again, assuming MP's new group does a couple of covers).
But this Shattered Fortress thing has really turned into something pretty cool, and at least for me, I really appreciate the work MP is putting in to make it happen (here's hoping you film and realize one of these, MP!)