The things they say:

“We’re certainly talking about it, yeah. We have so many ideas on the table from the time we spent just developing this thing, and finding out how zombie worlds work. We have so many ideas, and so much information that we think we got a lot of stuff in mind from or to. So we’re going to do our best and see what we get out of it. We got to get the script right first to determine if we go further.” Brad Pitt on the possibilities for a World War Z sequel.