I really like A_New_Hope’s suggestion of having a BD25 for each despecialized movie with the best video and audio quality as well as all the subtitles available and then have secondary discs for the bonus material.

The improved image quality and the easier updating process would certainly favor this option, and I also feel like this is the better option for a Despecialized Blu-ray release. Don’t get me wrong, I like your choice of special features but I don’t think they’re necessary for a blu-ray set like this, except for the “documentary” about the Despecialized sources and maybe a trailer collection and I’d rather use the extra space for better video quality and more audio options.