Power Anime now has Ten Billion Days and One Hundred Billion Nights by Ryu Mitsuse supposedly from Viz up for pre-order with an ETA of September 2011. Since this was one novel suggested by commenters when Haikasoru posted hints about new licenses (which I mentioned a while back), it looks pretty legit.
Also listed is Cage of Zeus by Sayuri Ueda, again from Viz with an ETA of September 2011.
Metal Gear Solid 4: Guns of the Patriot by Project Itoh is also being listed by AAA Anime, but for an August 17, 2011 release. It remains to be seen whether this will be a Haikasoru title or not, but it is listed as from Viz.