Trump has not promised to pardon him, but rather to commute his sentence. So his sentence was: 2 consecutive life sentences for the 5 charges plus 2 Kingpin charges carrying 20 years each. So the commutation does not declare him Not Guilty but rather acknowledges his guilt but exercises mercy on the sentence.
Double Jeopardy precludes The State from retrying a case after a verdict, but it does not prevent The State from bringing new charges. Given the charge was dropped, not dismissed, and it was used in sentencing, I'd bet on The House to win.
It's all so fucking gross. I'm glad I've never put a cent toward any of it from the fruit of my labor. I am innocent.