"This" being a trade paperback collection of The Phantom Zone, a 1982 mini-series written by the late, lamented Steve Gerber and illustrated by the also late and lamented Gene Colan.
It's one of my all-time favorite Superman stories, and with good reason.
DC is releasing the trade, no doubt, because it has multiple connections to the new Man of Steel movie.
But who cares why? The fact is they are releasing it and people should buy it.