>>40793109Maybe.
But you can't say they were rehashes, like literally every game since.
They took basic ideas from RBY and expanded on them, added to them, and created new loops that fed into the main gameplay. Nothing you can say about any game that came afterward.
What's the biggest innovation in any game after GSC? Phy/Sp split? Ohh man, some numbers you never see get calculated slightly differently! What a huge innovation!