its called a gran coupe. Similar to a 6 series gran coupe, BMW X6 or the new 4 series gran coupe coming out. Its basically a 4 dr hatch with the body lines of a coupe. So you will have less head room in the rear and truck space but will have more sporty looks due to the more aggressive lines. Its been a sales success for the luxury market.
I'm not sure if it would do well for the subaru demographic since subaru drivers tends to value utility, reliability and resale value over looks.
It might be there attempt to bring in new type of buyers for the brand.