Something like this.
It was announced that there would be an official press conference on Monday January 24th at 4:00pm. There they will detail the marathon course which has been decided, as from a few days ago, and discuss the participation (hopefully have some maps I can upload here and details on how they are going to select the runners).
I'll let you know as I hear things. They had a virtual map on the TV tonight which ran through the full course. I'll try to get hold of that. But no complaints it looks fast and covers just about all the things you'd want to see while you're here!