I think you may have it wrong that this investigation will link to Joe and Hunter. IIRC, this is the tail end of an old investigation about US companies bribing the Chinese by hiring Chinese princelings. The Biden bribes run in the other direction.
Also, it’s likely partly the usual government extortion of banks and other moneyed interests who are just doing business overseas the way their competition is.
I don’t see how this particular investigation links to the Bidens, although they are doing something very similar: selling state favors for employment of US children.
In fact, one could even guess that this investigation could be used just as easily to foreclose others as to open others. “JP Morgan paid $264 million... corruption case closed.”
I don’t think this links to them. I think Bidens will get investigated and prosecuted over Burisma, and the Left will scream like stuck pigs that they did nothing wrong. This is an example of the Obama Administration prosecuting JP Morgan Chase for doing exactly what Burisma did with the Bidens.