This spoiler is exactly the kind of thing I would put in a post to get attention to dumb bullshit I made up.
In fact, let's do this.
I just read Rebirth, it's fucking nuts. They do this weird parody of Hickman's Avengers, right, and Danny the Planet from the Morrison/Case Doom Patrol run becomes the new Mogo. Also, Jonni DC, Continuity Cop, is the one who creates the Rebirth Stormwatch, there's even a crazy flashback to Dragon Knights. Also also: Ultra Comics shows up. Ten of them. And Death from Sandman shows up. She hooks up with Kyle Rayner (no shit). Final page of the issue is a spread of John Constantine's face looking at the reader, saying "cor blimey mate this is a real twilight of the superheroes".