The latest rumor indicate that the next version of the Phottix Odin TTL flash trigger will combine Nikon and Canon controls into one unit:
"According to one of Phottix’s European distributors, the next generation of Phottix Odin TTL flash trigger (Phottix Odin II?) may allow you to control Nikon flashes from Canon cameras and Canon flashes from Nikon cameras, adjusting power levels in manual mode."