Cute, they said the same with the PS5 zen CPU architecture. ¯\_(ツ)_/¯
Not sure if most got the memo, but hardware leaps isn't the savior anymore, hadn't been since the 8 gen.
It's ridiculously high budgets, a small army of devs working internationally and risk-aversion + tools that don't catch up in practice as suggested. That's what is actually stagnated high fidelity game development.
A future (and current day) where high-tier dev studio's (like Rockstar or Naughty, etc) can, in practice, only produce 1 title per generation
Edit: the last I actually got existed by "next gen hardware" where the 6th (PS2/XBOX/NGC) and 7th gen (PS360) leaps, as those games actually showed a fundamental and substantial leap in visual and simulation fidelity, leading to actually "next gen" feeling gameplay. Games that simply couldn't be possible on previous hardware.