^ That most likely won't occur. They should have rebooted clean, but we all know the reasons why that didn't happen by now since it's been repeated several times in the thread. I doubt that we will return to the previous DCU. They'll just continue to do what they've been doing since the relaunch and tweak and retcon where they feel is needed (even though it isn't in some cases).
The only way that we might get another relaunch or even reboot is if sales completely topple. They've had a slide...but not a collapse. Or if they feel they've reached the point where they were pre re-launch with the majority of their books, just not a few year or a few there that they can continue to replace like they've been doing so far.