Despite denials and wishful thinking - Microsoft is buying Bungie as previously reported. Of note, another company Take2 has rights to some parts of Bungie's product line:
"Take2 is selling its stake in Bungie to Microsoft immediately (no doubt at a significant profit) but is also gaining complete rights, in perpetuity, to the Oni and Myth franchises -- all existing titles and titles in development, as well as future titles in the franchises, are now Take2 properties. That includes the game engines, trademarks and copyrights for the games. Further, Take2 gains the right to create two games based on the Halo engine."
"For its part, Microsoft gains three development teams to aid it in the creation of proprietary Xbox titles. Most of all, it gets Halo, which is arguably one of the four most highly anticipated titles in existence"
Mac and PC versions of Oni will be released as planned according to MacCentral.