Suggested Revision to How BIA, Plan, and Document Due Dates Work

A client has suggested that the Due Date for their BIAs, plans, and documents should be able to be set to be Due Date + Update Frequency - instead of Last Approval Date + Update Frequency. They want this because they want to pick a due date for a BIA, plan, or document - e.g., March 31 - and then have that same due date apply year over year regardless of when the item is actually approved. Thought of a different way, they'd like Due Date to work like meeting recurrence in Outlook - they want to be able to set a cadence for review/approval and have it apply regardless of when the item is actually approved.