What about making a Jakku a sandy forest? Too radical to be feasible, I suppose? That said, it does follow my rule of only adding decor rather than changing the fundamentals. There could just be patches of trees here and there.
The only thing I’ve thought of would be to change the greenery to a different color, maybe to something more autumn-like, such as yellow or orange, since we’ve never really seen a fall-season in a Star Wars movie.