While Marvel has been busy announcing — or I guess re-announcing — every major event in their history for 2015, DC has been setting the seeds for what co-publisher Jim Lee calls "in many ways the most meta epic event we've done."
It's a nine-week miniseries called Convergence, due next april and May, and DC will put all of its superhero comics on hiatus during it. Instead, Convergence will consist of 40 two-part miniseries examining a variety of moments and characters throughout DC's entire publishing history, showing that everything that happened before The New 52 relaunch still "counts" — as well as possibly explaining why certain superheroes have yet to appear in the New 52, including Donna Troy.
The alien supervillain Brainiac has trapped cities from various timelines and planets that have ended, brought them in domes to a planet outside of time and space, and is now opening them for a great experiment to see what happens when all these folks meet. ...
Following in the footsteps of Brainiac is Telos, a new bad guy being introduced in Convergence. Named after the Greek philosophical term for ''end'' or ''goal,'' he is born of Brainiac and this mysterious planet — even taking on traits of that world — "but becomes a character unto himself," says DiDio.
This is all very vague, but I'm guessing this explains the different shards of previous DC universes shown here (first letter). I can see the value in assuring readers that the New 52 didn't really wipe away all the previous stories DC fans had enjoyed, but pausing all superhero comics for two full months is pretty major — and seems like it could backfire on them if readers fail to return to these series about Convergence is over. Hmm...