Innovation in data visualization? From a purely utilitarian view, the purpose of data visualization is to present data in a way people can understand it. If you’re constantly changing the method of visualizing the same thing it’s harder to do that. Sometimes a bar chart is best.
As far as cool visualizations go (that are better served as nonstandard visualizations) there are two recent ones that come to mind:
https://youtu.be/TkwXa7Cvfr8 (Especially around 16:56)