IGN asked Microsoft for clarification, it does not include all bundles and is temporary: http://www.ign.com/articles/2017/06/10/e3-2017-microsoft-announces-xbox-one-s-price-drop
Includes the 500GB BF1 bundle and 1TB FH3 bundle, does not include the 500GB Minecraft bundle. Basically the 500GB bundles will be $249, 1TB bundles will be $299. June 11th through June 17th.