Nissan to sell Mazda 5 (プレマシー) variant in Japan

In many occasions, there are agreements between Japanese manufacturers for selling rebadged versions in Japan, but this time I think it's a bit bizarre. There was an announcement yesterday that Nissan will sell its own version of Mazda's 5 model (aka Premacy プレマシー). Although Nissan claims that its version will be clearly differentiated, I am really curious to see what will happen to the Nagare-inspired waves that stretch across Mazda's 5 side...