This is sort of related to what I was saying about the Transhuman last week, where a lot of things seem to have started happening in the DC Universe about 5 years ago. Aliens arriving, people with superpowers popping up, so on and so forth.
Here's the question: Do you think the end result of this is going to be a revelation where all of this is planned, or at least, not a coincidence? That all the homegrown superhumans are a result of some work behind the scenes (which I think was the big reveal about the Ultimate Universe), that the aliens are all being guided here by some force, or have arrived on their own because they recognize it's kind of screwy, what's going on here. I feel like writers do this sometimes, either because they like for their to be conspiracies, or they think they're streamlining it. Byrne's Spider-Man: Chapter One was the latter, since I think Spidey, Ock, and maybe the Hulk (or was it the Lizard?) got their powers in the same accident. I have this vague sense the Ultraverse was closer to the former, but I haven't read enough of that to be certain. Those Earth X books had the "Celestial Egg" answer for all the heroes, I'm not sure which that is.
I know this situation is at least partially engineered, since things are in their current state because Barry Allen helped the mysterious Hooded Woman "fix" things, but that would raise the question of why she (or he) would want so many things to all start at once (and how did he fix things so Demon Knights takes place, since that predates his original messing with the timeline that gave us Flashpoint in the first place?). It feels like, with the interconnectivity of the books, that there's going to be a startling reveal about a common origin for all this, that will have emerged somehow from that original timeline manipulation. Whether it'll be part of some grand, possibly malevolent plan Hooded Woman has, or just the universe shaping itself to fit the conditions she and Barry imposed on it, I don't know.