There is an archaeologist handing around the statue on the outside of the city, with mining equipment.
Could she be on to a hidden treasure buried near the statue?
There is a new channel being dug and a barge being assembled near the digsite. The Varrock museum seems to be paying for it. Could they have information about new treasures?
Until an update, there was not a destroy option but drop option for disposing the report, and it is still obtainable after the completion of the quest.