Seems like Shimano is getting mar and moar SRAMized. They will release in the wild a new 11-46 cassette (with a rumored 11-52 XT/XTR level one in the works), a chain quick link and narrow/wide rings with moar sculpting to dodge SRAM's patents.
http://www.bikerumor.com/2016/02/29/shimano-put-their-spin-on-narrow-wide-chairings-intros-11-46t-cassette-quick-link-new-gearing-more/
http://www.bikerumor.com/2016/02/29/shimano-put-their-spin-on-narrow-wide-chairings-intros-11-46t-cassette-quick-link-new-gearing-more/