Entertainment from Japan has been a save haven for a good long 30 or so years. Relatively untouched from the outside corruptive influences until more recently.
However I am not so complacent that I expect it to stay that way for good. It's been clear that things have been shifting downwards.
Soon the same problem will occur there. The entertainment and series being produced will be done so the banks and financiers are happy, not the people watching or playing them.

People will once again need to look for smaller sources of entertainment, especially from themselves and those around them.
Not just in the way of copying what they already like, but being able to create from deeper sources.
The biggest issue is almost always curation and consensus. Once that is established them things can grow.