In case the abundance of merchandise didn't already give things away, Sony's banking on Horizon: Zero Dawn being the next big thing. And just to reinforce that point, PlayStation UK boss Warren Light has stated in an interview with Games Industry.biz that the platform holder's "backing" the brand new intellectual property hard.
To be honest, we can't remember the last time the platform holder doubled down this hard on an original endeavour. The Last of Us is probably the best point of comparison, but even then things seemed more subdued surrounding that game until it became a critical sensation. Outside of that, you'd probably have to go back to the likes of Resistance: Fall of Man and LittleBigPlanet.