It'll look somewhat different, so there's that.
Officially, the Infiniti QX30 is a crossover version of the Q30 sedan, which sounds simple enough. But the truth is even less complicated, in that it is largely a copy of the Mercedes-Benz GLA-Class crossover. It was called a joint project, but Mercedes was in charge of pretty much all of it, with Inifiniti's input limited to giving desired parameters for things like ride comfort. Nonetheless, Inifiniti has decided to tease the QX30 in a solitary photo of its rear end.
Not that all of this Mercedes involvement is necessarily a bad thing though. People like the GLA-Class well enough, and the new Infiniti will give those who don't care for the German styling another option. That will actually carry over to the interior as well, as the Infiniti will have a cabin that falls in line with the brand's signature styling and comfort norms. The car will also be powered by a Mercedes-sourced 2.0-liter turbocharged gasoline or similarly Teutonic 2.1-liter diesel mill. So we're looking forward to seeing what the whole thing looks like in March, since we already know everything else about it.