Why do I have a feeling out of all the different Maserati renderings/designs that this one is the most likely to come to fruition. There is such a push for high end luxury wagons these days. Everyone wants to try and bring a sports wagon to market, and we've seen the success that's been had from the likes of Volvo and Audi. I've seen Ferrari concepts as well as a Tesla one and I believe that Jaguar has already confirmed the release of a shooting brake.
Careful with those expectations because as much as I want to see it happen as well, so far Maserati hasn't shown they will come out with a design like this with current models. Even the new Levante is sort of dull along with the Ghibli.