The show will be created by film writers Rhett Reese and Paul Wernick, who are having a good day (it was also announced they'll be writing Micronauts for JJ Abrams) and produced by Gavin Polone. Polone said that they had been working on a sequel, but a TV show would scuttle those plans.
A weekly Zombieland? It sounds like just a funny version of The Walking Dead. I wonder if the show can find a strong narrative that gives it a purpose. I'm assuming it'll be the same characters as the film, simply recast (unless Woody Harrelson needs the work).
My advice to Zombieland: The TV Series? Rip off Police Squad's opening credits and have a different guest star die every week.