The series is being co-developed by Goyer and Ian Goldberg (Once Upon A Time) for the SyFy channel and here is how its described:
Years before the Superman became a superhero, the House of El was shamed and ostracized. This series follows The Man of Steel’s grandfather as he brings hope and equality to Krypton, turning a planet in disarray into one worthy of giving birth to the greatest Super Hero ever known. The planet was created by Jerry Siegel and Joe Shuster and fist featured in a 1938 DC comic.
Our original report is below:
Have we hit saturation with superhero television yet? It seems like the popular acclaim of Arrow has really started something with the sheer deluge of comic book based properties coming to the small screen. Literally every major network has one now or is in the process of development of such a project (Supergirl at CBS for example).
According to Bleeding Cool, they've heard another one is coming, this time from a familiar source. David Goyer, the writer of films like Batman Begins and Man of Steel and the executive producer of Constantine is supposedly at work on a series entitled Krypton, which will focus on life on Superman's homeworld before its destruction.
They don't give any further details, but its an idea that carries more promise than the misfire that its obvious counterpart Gotham turned out to be. Goyer produced some nice world building elements in Man of Steel for the destroyed planet, and were the series to follow up on those threads or have an immediate connection to that conception of Jor-El, Lara, etc...I'd be interested in tuning in. Then again, I thought the Constantine pilot was dreadful and played up all the worst aspects of Goyer's writing. He's a scribe that doesn't work very well unfiltered. But, until its confirmed, chalk this one up for the rumor mill for now.