Yes, and this is already possible in the largest social network in the world. If earlier the company simply froze the accounts of users whose estimates became known, now it gives them a second life, so to speak.
Now, Facebook users will be able to decide for themselves what will happen to their pages after their death and will be able to determine the person to whom they entrust the next page. Such a trusted person will be able to manage accounts, create new posts, but will not be able to edit old posts created by the previous owner of the page. Also, the owners of the pages after his death may wish to, that all information about them was deleted when they die.