Originally Posted by
All Star Superman
Thank you for this insightful and thorough post. One thing I want to suggest in light of your thoughts is that the solution to DC having no vision of a unified DCU wasn't necessarily the destruction of the Multiverse. As you point out, DC/WB execs felt this was the reason for losing to Marvel, but it was really a matter of execution.
For this reason, I believe COIE could have led to a single, unified, and "newer" DCU than the one that was piecemealed from five existing universes. As you point out, Hal Jordan's continuance as GL is a problem in a way; he, like Batman, didn't change as significantly as everything else around them. This wasn't a bad thing for Batman, as Dennis O'Neil used LoTDK to streamline the origin and early years of the character in concert with what was happening in the core titles. Most essentially, Batman isn't a legacy character like GL.
It's just as easy to "permanently" cut off the Multiverse from a new universe as it is to destroy everything and create one universe from five remaining universes that bring the baggage of their respective continuities. There would have been nothing to adjust/correct/fix only a few years later as this would have been an entirely new universe. If TPTB didn't want to use the JSA or the Legion, both could have been ignored completely. Later, both could have been returned fairly easily: the JSA was erased from this Earth's history for some reason, and the Legion's era has simply not been visited yet. Characters like Hawkman and Donna Troy would also not have to be repaired as they would have no precedents to align with in a totally new continuity.
To quote Ron Swanson: "Never half-ass two things. Whole ass one thing." DC has never been good at this with any of their "reboots." The New 52 was close, but it was so rushed, ill-conceived and poorly managed (Diane Nelson and Dan DiDio) that it ultimately failed. The key then and even now is to use the Multiverse concept to shift focus to a new "main DCU" every few decades and allow the previous iterations to continue in their own universes. No killing and replacing, no contrivances to remove core characters from their roles so they can be replaced by their kids, no "everything happened" nonsense.