The game, which is (perhaps cheekily) titled FortressCraft, will be broken down into seven chapters to be released every four to six weeks. In a post on the Minecraft forums, a Projector representative explained, "Chapter 1 is basically Minecraft's Creative, Chapter 2 adds in crafting, Chapter 3 adds in life, Chapter 4 adds in machinery, Chapter 5 adds in Minions, Chapter 6 adds in PvP, Chapter 7 adds in Fortress Assault mode... (or whatever)." According to the FortressCraft Twitter account, the first chapter is due out next Friday, March 4 for 80 Microsoft Points ($1).
Each of these Chapters contains the features of previous installments -- a workaround for the platform's inability to patch in new updates. It sounds like a pretty ambitious (if not fairly original) undertaking for the developer. Whether the studio receives the support needed to complete all seven chapters -- or whether litigious sources intercede -- remains to be seen.