There’s some great ideas here already!
I don’t have a lot of additional suggestions, but one topic that the community might be interested in is flexible course authoring, i.e., Content Libraries and Editing (BD-14). It would be nice to get an overview of where that project is currently at, what use cases it already supports, and which ones it will enable in the future.
Since BD-14 is a blended project, a talk on it could be done in collaboration with people that have been involved in it on edX’s side?