Warren Buffett¡¯s eventual successor will often face the question, WWBD?

What Would Buffett Do? Apparently he would keep expanding Berkshire Hathaway Inc.¡¯s horizons any way he saw fit. That¡¯s the freedom the chief executive officer, who just turned 90, is giving the next CEO with this week¡¯s announcement of a $6 billion investment in Japan and other recent breaks with tradition.

By showing he¡¯s willing to move beyond some of his long-held practices, such as an aversion to share buybacks and a propensity to stick with close-to-home investments, the billionaire investor is removing those handcuffs from his next-in-line as well.