By its own account, Snapchat isn't attracting anywhere near the amount of users it should be. To ensure its app isn't fully eclipsed by Instagram, it's planning a major redesign that will make the notoriously difficult service "easier to use." Although CEO Evan Spiegel said the revamp would focus on Story playback and surfacing original shows, he stopped short of announcing a launch date. Regardless, we now have a tentative ETA, courtesy of Business Insider's sources. The update will reportedly land on December 4th and (naturally) will bring with it some major changes.