User blog comment:AmazingPST"Providence"/Amazing RP/@comment-1755882-20150130162917/@comment-1755882-20150131003154

Said BT05 cards and all remaining promo cards and the Hero/Ancient World cards revealed in the show in addition to Crimson are on their way on now, along with some new features to streamline the simulator. xD

Something I noticed is that the cards missing from BFA were cards that...weren't listed on the World page here on the wiki. Which explains how what got missed got missed.