The only problem with Nikkei's report is that it ignores Mazda's past model launches. Before the new CX-5, there was the Minagi concept of 2011, while the new Mazda6 was previewed by the Takeri concept the same year. It's likely a preview of the CX-5 is what we'll be seeing this summer.
Even if the Mazda crossover is to be revealed this summer, we wouldn't be able to actually buy it. That's because, just like the Honda Vezel it would only be available in Japan at first, priced from around 1.5 million yen. Europe will get the crossover next, but there's no mention of US availability.
Nikkei also writes that a new CX-9 is to be launched in 2015. After canceling the CX-7 because it overlapped with the CX-5, Mazda will make its biggest model into a mid-size SUV, allowing them to sell it in Japan where the current model is considered too big to be desirable.