Bill Gates and Melinda French Gates have at times referred to the foundation they established together as their “fourth child.” If over the next two years they can’t find a way to work together following their planned divorce, Mr. Gates will get full custody.That was one of the most important takeaways from a series of announcements about the future of the world’s largest charitable foundation made on Wednesday by its chief executive, Mark Suzman, overshadowing an injection of an additional $15 billion in resources that will be added to the $50 billion previously amassed in its endowment over two …
