Exactly. If you could clear your name and get your reputation restored, why not do it now.
He’ll need to do it as a “coordinated media release” where the MSM will blitz it over a short period of time, that time being whatever time Kerry needs.
The blitz will allow him to get what he wants (nomination, election, a new billionaire wife) before any analysis or comments are allowed to seep in.
MSM has a limited bandwidth for ideas, only so many can be pushed at once.
If he put his (probably fictional) documents out now, we’d all spend months researching and coming up with clever youtube and FR ripostes. If he pops it the week before whatever he has in mind, everyone from Katie to Larry King will splash it.