I'm sure LS was pulled from the programming of TWD to work on the new system. Happens all the time that is why code takes so long to get to buyers of new games. I'm also sure that TWD will get more attention likely by LS at some point.
One thing that is fact is this liscence was indeed screwed up by Stern. Not getting the rights to use actors sound bites is bush league. Getting such a cool licsense and not including actors voices is an epic fail IMO. It's like a half liscenced pin.