Atlas heroes has been fast tracked once already and Astonish is over a year now (it usually comes before Suspense).
I'm guessing the Avengers as well maybe to get it closer to an eventual Avengers and Defenders release in the same month without crossovers in each book. I know that's still a couple of years away and I'm reaching here but what the hey! There are plenty of other titles people would rather see released before a Defenders Vol. 2 I would think.