In the latest issue of Edge magazine, there is an interview with old community manager Urk. He says that there is no 10 year plan for Destiny, and that the thought of there being a 10 year plan for Destiny is "comical." What he does confirm is that Bungie has a 10 year partnership with Activision. So what does this mean? Destiny could very well end after only 3-5 years. But Activision will continue to publish whatever game follows Destiny for the remainder of that 10 year time frame. That doesn't mean that Destiny couldn't last 10 years, but it's possible that Bungie could develop a new IP within that time.