Jagex has announced that Runescape 3 will be released in the summer of 2013. According the the press release, Runescape 3 will ship with an HTML5 engine, improved graphics, longer draw distances, new audio, new design features and world changing content updates as the game moves into a new age.
Mark Ogilvie commented, “RuneScape 3 marks a significant moment in RuneScape’s history as the world enters the 6th Age. All our recent content updates have been building up to this point, massive change is coming, and our players will be able to shape the game with the choices they make. Every single player will have the ability to shape the world.”
More details will be revealed over the coming months. We'll keep you posted!