It would be nice if there were more options for filtering in the Global Asset list at the very least. Being able to add other columns that are global among all assets (like flags). Then the ability to filter based on those columns.
Also, multiple selection and mass edits within this view.
Currently, the Asset list is capped around 25 Results per page. Maybe add a functionality to request more than 25 on one page. Like a little dropdown in the bottom right corner to select between 25, 50 or 100.