Here is the scenes I’m thinking of adding from the extended edition for Return of the King:

-Decline of Gondor scene of Gandalf telling Pippin about the decline Gondor has gone through. This takes place after they first meet denethor.
-Add the extended scene of denethors convo with Faramir where he sees a hallunication of Boromir behind Farmair and yells at Faramir about not bringing him the ring.
-add the extended scene of Pippin and Faramir talking together about how Pippins uniform used to be Faramirs.
-add Faramir saying “I would gladly sacrifice my life for this city”.
-add the extra footage of Denethor and his servants carrying out Faramir to be burned.
-add the few extra action bits of Merry and Eowyn kicking ass.
-add houses of healing scene