Say you have a proprietary game/service now that could include some third party middleware they're not allowed to share, and the game relies upon an online service - right now that's allowed, and there's the scenario where the company is ongoing and want to cease the game the may be obligated to do work to make a community effort to have the game survive viable. If the company is closing, presumably they'd either be obligated to do the work for a release up-front (and maintain it over versions?) and keep it in escrow as when they won't be able to do the work later, or if any other company wants to buy their assets they either inherit the obligation to work on a free/libre release or keep the game/service running even though it may have contributed to sinking the previous company.