According to an interview with O’Connor by Official Xbox Magazine, “I can tell you we’re not working on any side stories as games at the moment. There’ll certainly be more Halo fiction entering the universe, but we’ve no new games to announce right now.”
O’Connor did promise answers to unanswered questions in the Halo mythos: “I think that there are a lot of questions that fans of the series want answered, and we’ll certainly be in the business of answering those questions,” he promised, ”But we would be lazy and very lacking in imagination if we didn’t inject lots of brand new questions into the universe, and enigma, mystery, and awe are at the heart of what drives the fiction.
“I think building that sense of epic scale, while also focusing on creating great, memorable characters, and exciting new stories, are what will propel both 343 Industries and the universe it inhabits.”
As for the tenth anniversary of Halo: Combat Evolved?
”2011 is the tenth anniversary of Halo, and we’ll make sure that the fanbase, the userbase, and the community is energised with cool new content and fiction,” said O’Connor. ”We’ll kick off 2011 with the first of three novels from Greg Bear, which explores the Forerunner universe, and there will be more information about the ‘contemporary’ Halo novels coming from Karen Traviss. And by contemporary, we mean events of 2552 and beyond.”