The only real ideas I can think of would partially rely on the site functioning at a reasonable pace. If you had a monthly "ReMix Request" show, it could be based on the most popular comments from the previous video once it gets rolling. If the concern is the panel being so far behind, it's possible that you could find a remixer who could produce a direct post-quality mix in a month's time, then feature that. Maybe even make a competition out of it and have a lot of remixers enter. Everyone loves making remix requests. Hey, that reminds me, whatever happened to the FF6 kickstarter remix requests?
I do think the content should focus on remixes, remixers, composers, and conventions where OCR is participating. I think "source breakdown" would not be entertaining.. it would be useful information for people trying to become an OC Remixer who need to know exactly what part of the melody they need to use to make a remix, but that could be worked into the tutorial videos. My brain turns off when people start talking music theory because it's some of the most boring stuff in the history of the multiverse, this is coming from someone who aced their theory courses. Might as well host a video series about teaching Calculus cause it'd probably be watched by as many people!
I disagree that remixer interviews should be live and worked into OCR Backsass. Owning a decent camcorder does not mean you have a decent webcam or a decent internet connection *cough* Only hardcore fans are watching that for an hour, hour and a half, and it often goes far outside of the OCR umbrella. By that I mean, OCR has a specific branding of what people expect and want from OC ReMix and maybe half of the show targets that demographic, but it's too much like freeform jazz. It needs structure, and to stay on course with relevant topics.
ReMixer interviews on the other hand, would probably be limited to 10-20 minutes and be focused on the remixer, and their answers to a series of questions about remixing and VGM. It could open and close with a clip of their music and possibly have their music in the background during the questions. It would be short enough that people would check it out especially if they were interested in said remixer. It would also be a good move towards informing people that remixers exist and the remixer is not "OC ReMix".