We can't really see anything other than the Harlond area because, well . . . there are zero changes in South Ithilien, and we could only have viewed a distant Lossarnach from the upper hills of an "after-battle South Ithilien."
Don't you think that they decided to postpone Ithilien until the moment after the wedding of Faramir and Eowyn and their accession to the hill of Emyn Arnen? Then returning specifically there would make even more sense.
Of course, I would like to see there some kind of analogue of Hytbold with the construction of a city, a dream of a dream..