is attack on titan (shingeki no kyojin) episode 48 filler?

On a rural farm, Historia Reiss chases after a pair of children as Eren Jaeger, Armin Arlelt, and Jean Kirschtein watch. It has been two months since she was crowned, but she seems better suited to run an orphanage than a country.

Armin says that people are affectionately calling her the "Cattle-Farming Goddess." Jean comments that at this rate, no one will remember the chump who plugged the hole in Trost District, but to his disappointment, Eren does not take the bait and talks about how this is what Historia wished for, to take care of the orphans and the needy.