No, there's no world in which he is. Fraud on this level will see massive forfeiture as directed by the SEC and DOJ and then civil suits will clean up anything left afterward he's released from prison.
Sure there is.
The scenario where he escape with a suitcase of gold to a country without extradition.
Or another scenario would be if he had serious blackmail on several key govt officials.
Many printed out bitcoins fit in an envelope.
The Alameda CEO, though, was last spotted in Hong Kong, which offers many more possibilities.