Agreed. Though I'm not sure I'm gonna get everything one fell swoop, but dang. Five catalogue films, Endgame and Batman: Hush. There will be one more wave later in the year with Guardians 1, Doctor Strange and Ant-Man and that should be the complete collection.
The previous blu-ray releases for both Iron Man 1 & 2 under BVHE have omitted the bonus disc from the Paramount releases and it's not looking like it will change for the 4k releases. Notice the image in the upper right corner both are only 2 disc releases.