I would like to see more arts and humanities classes added, in particular more art and design classes. These could be on the history of art and/or design or they could be hands on creation classes.
At this time Coursera offers the Cal-Arts intro to graphic design five course specialization, which is a good start. That offered a couple of hands on art and design classes, an introduction to the history of graphic design and an introduction to typography -all of which I took and all of which were both enjoyable and educational.
On the edX platform, I took a class on Natural History Illustration, which was a hands on drawing class with clearly defined peer graded assignments, self assessments and a couple of tests.
I think more hands-on courses on various aspects of art or particular styles would be fantastic. I would also like to see in depth classes on the history of art and design, from ancient times to modern and from all parts of the world.
As to who I would like to see teach these, any University with an art department would be fine -it doesn't have to be a art-particular school like Cal-Arts, though if they wanted to do more that would be fun, too.