DC Universe Online is merging all of their servers into "megaservers"; [LINK]
As everyone knows, when servers, realms or shards are shutdown or merged that usually means dwindling subscribers.
In this specific situation, 26 servers are being merged into 4. There are so few people playing now, apparently they can make them into regional servers.
Don't let the public relations and marketing spin of "super servers" or "mega servers" fool you.. they're just being called that to lighten the blow of what's really happening. Merging servers is a death knell, and calling them "mega servers" is smokescreen.