like current sixth dimension become multiverse's control room,multiverse forged in there,but back at post-crisis JLA issues,we already got a 6th dimension version.
perpetua relationship with monitor and anti-monitor,at grant morrison's concepts,is that the two beings are probes from overvoid.so perpetua become them mother look like very confusion.......
also dark multiverse concept is very similar to DC's hell,constructed by negative thoughts,emotions ETC.
so,in short,we get a lot of infrastructure change on dc cosmology.my questions is do you like it(or some part of those concepts)or dislike it(again,or some part of those concepts)