If Trump does dump all of it, then it will have an effect, because it will implicate high ranking folks and that will result in investigations, arrests etc etc.

Also, once again you folks underestimate Trump.
If he does indeed dump this he will do it so it DOES MAKE THE MEDIA REPORT ON IT. He will take out someone in a high ranking positions and he will do it dramatically. So as to FORCE them to be outraged, but the eveidence will be overwhelming. Trump is the one in control here.
Not the media.
Watching John Brennen led off in handcuffs will be yuuuuge and everyone will be covering it.

It's Trump folks. He's a genius.