If they keep selling, publishers won't stop.
But why look at this on a generation per generation basis?
Even if there's just 1 Pokemon per console generation doesn't mean I won't get tired of playing the same game for the 6453254'th time.
I skip most Gran Turismo games because it's always a very similar experience.
I don't feel like playing one this generation, but maybe I'll get GT7 for PS5.