The ever-vigilant Dan Rudolph noticed that Dark Horse Comics has quite a bit of Oni stuff up now, and he posted about it at Oni Central. There are a number of Oni-related pages at Dark Horse; some of the most relevant are:
Oni Comic, Issue #1 Description
Oni Comic, Issue #2 Description
Interview with Rockstar's Jeronimo Barrera
Warning: Be prepared for lots of references to Rockstar's Oni, very few references to Bungie, and assorted factual distortions. So it goes...