Spoilers alert!!
I just read the Justice League 32 and I have a question to other readers:
Did just Brainiac evolved into the same stage seen in Convergence or it is another shape reminiscence of that stage? I mean, with time travel you can't say for sure if for him this is happening before or after that story. And you must admit they are pretty much look-a-like:
Brainiac Convergence:
Brainiac One million (JL #32):