How long should "The walking dead" comic series continue?

The comic series is a great comic and a great read with awesome climax's and twist and turns you couldn't predict as they kill characters off regularly but it hits a point every few books where it slows and and nothing happens for example the latest volume, volume #14. It builds up and builds up only to have an anti climactic ending that per preserves the series from ending and prolongs the true drama. How long should it go on? How should it get out of its ruts? How should it end?How long should "The walking dead" comic series continue?
One of the things I like most about it is that it doesn't end. The worst part about a Zombie movie is that eventually it ends. The Walking Dead is the only thing that tells you what happens to the entire world, and it just keeps going beyond that initial story. Personally, I think the Walking Dead should be like any serialized super-hero comic, and go on forever. You can even have it move in semi-real time. Eventually, Rick and Carl would get older, and eventually the book would be about Carl after Rick dies. Then you could have stories about the first generation of survivors that have only ever lived in the zombie world. It could get very interesting. If Kirkman is done, let someone else pick it up and run with it, just like any comic. Get new creative teams who have a good story to tell, and let the story keep going.