It depends on the fanbase.
Nintendo and Xbox fanbases mostly don't care about new IP's, they could see as winner their respective conferences because of a new Mario 3D or a new Halo game.
For Playstation fans it goes both ways. Maybe they could unveil another Horizon (New IP), maybe they could unveil a new Crash, it is not that easy to predict. The fanbase is more varied on the Playstation side.