"Walking Dead" Spin-Off On The Way? And It's To Be A Prequel?

AMC have announced that they are planning to milk "The Walking Dead" franchise to the absolute max and make a spin-off series that will air on television sometime in 2015. It's reportedly said to be a prequel and tell the story of how the infected became the infected.............basically the extremely early days of the walkers.
Quite frankly, I'm all for a prequel story of infection but I just don't see it as a full length series on tv. I personally see it more as a mini online series or even a few episodes during a series of "The Walking Dead" series or even a mini comic book series. Like I said above, AMC will milk the popular zombie franchise till it's dry and even then...........they'll keep going.