FINRA would block any merger with another public trading stock company. Just like they did with the 211. That leaves one other possibility: A private company buys KMAG. Since KMAG is a public company, that would also require a corporate action request filing with FINRA under Rule 6490. Which again FINRA might block. Even liquidations and bankruptcy would involve a corporate action request to be filed with FINRA.
The only path to bringing a merger back into play is a Form 10 filing, followed by a 211 approval.