At this point, I don't think any single game can give the PS4 a win unless it's in a really slow month like what May is shaping up to be. It feels like Sony has gotten just about every major audience they can and all that's left are the bargain hunters waiting for a huge price drop or sale.
Well I'm pretty much in the same boat, but if any game could push it above the Switch. It would be one of those two..
If anything a massive pricedump would probably be the biggest chance for PS4 to win a month, but I dont think Sony really cares at this point. They are selling at a steady rate at a high price. Cant go wrong with that at this point.