I don't think Japan can really make game changers anymore anyway.
On the contrary Kagari, i think there are still a few on the scene who could who haven't left the industry entirely or moved to mobile/handheld.
Their issue is, they are too scared so they don't try. The Japanese industry right now is filled with nothing but cowards who are to stuck in moe moe, trying to gain bank micro transactional stuff, or just afraid in general of doing anything outside of the bubble they created themselves.
As Jm Sterling once said, many large japanese development houses created this environment through bad management throughout the last generation, and now act like it was just the player base who didn't appreciate their games when it was anything but.
Considering how many indies with like 1 or 2 people can get their stuff on next gen consoles, budgetary constraints cant even be the excuse anymore for many of these still big companies in general. Yet we have SE going towards mobile and once again, blaming the player base. Capcom is the same when they blew their own budgets on their own ignorance as to what made their franchises sell.
Even Namco Bandai which i think is probably the healthiest by far of these conglomerates still standing, still tries to survive on franchises more than a decade old.
Its not like they cant make good games, they just refuse to try and challenge themselves.