What you said at the end is correct. He is aiming to have the courts somehow force through a Bitcoin hard fork that moves Satoshi's coins to an address controll

What you said at the end is correct. He is aiming to have the courts somehow force through a Bitcoin hard fork that moves Satoshi's coins to an address controlled by himself, and he is including his Bitcoin fork, BSV, so that his team can implement the fork and show the courts it's a viable remedy. Then he'll say to the courts "look the developers and miners for BSV made the change so it's possible; You need to go after the Bitcoin people and make them do the same."