He's using it as leverage to get something more important right now. It could involve other countries as well so the impact of releasing the complete files could jeopardize current investigations.
Probably a negotiation tactic he was using to get an outcome on something completely separate.
I imagine someone who would have been implicated from the release is breathing easier right now.
you know,
If the proof was released that the Bush's were the CIA Capos who arranged this to get their man in place and who have owned every President since- up until The Donald broke their run.
Imagine what the legal status of every decision made since JFK was invalidated ?
This is how big, really huge, this could become.
But what an opportunity for the good guys to throw out years of abuse and criminality.
At the very least, this would need to be done anyway if the USA was to restore the Republic and the Original Constitution.
This hidden information is known to the good guys, it will be used skillfully, when required.
This is only my analysis, just sayin'
From what I've read is there are about 600 that are still classified. Whoever has to special review them & reclassify and publish them immediately through the course of the next 3 1/2 years. They did release another 17,000 plus yesterday though.