Provided there is no magic deus ex machina like Wood says (I too want to believe) we don't really have a chance. That being said now is the last time we may ever have to reveal classified bullshit.
Reveal to the world unheard truths that would make them turn on each other. For example if just about any 9/11 conspiracies were true you would seriously show how awful those in government are. Show off fucky CIA shit, NSA monitoring, and political corruption from anyone and everyone. Hell, give us aliens. Something.
You can afford to burn bridges now, so show off corruption within GOP and DNC alike. Go out in a blaze of glory so that everyone will know the truths that have been kept from us for so long. They are already coming after you and us so you might as well fight back with this.
I know that the "proper" process to declassify has been subverted from you, but if you went live somehow, revealing all of these things, you can leave lasting marks and sow divide between the complacent populace and the DS. Also, pardon the everloving fuck of out of those who deserve it. Snowden, Rittenhouse, Assange, and more. Put out executive orders shielding what they will try to take from us: 1st, 2nd Amendments for example. Hell, the whole Constitution. Do whatever you can to fuck with them.
If you are truly leaving, go out with a fucking bang, and take some with you.
Declasify and do what exactly? We know they stole our elections and we cant do anything about it. So what does it matter? They control the laws, the courts the media and everything else. We live in Tyrany and the truth is whatever they want it to be.