I would like to see an easy way to copy or download a filter view (or many filter views) and use it on similar sheets. This would be very useful on complex sheets where we have many pre-set options available for end users. I imagine it would be similar to the feature that allows an Admin/Owner to copy a Sheet Summary and then export it to other sheets.
When implementing updates on items that are not already in Control Center or part of a Portfolio, this would be a helpful tool. If it were available for individual filters to be shared with other users to help them build a similar sheet (vs share to group on the same sheet), it would also be a useful learning tool for new users!