is bleach: thousand-year blood war (bleach: sennen kessen-hen) episode 40 filler?

Having encountered Sternritter "A" Uryū Ishida near a Gate of the Sun in the main castle of Wahrwelt, a stunned Ichigo Kurosaki sternly addresses him while a concerned Orihime Inoue and Yasutora Sado catch up to him and are shocked to see Uryū as well. From an entrance to the side of the chamber, Sternritter "B" Jugram Haschwalth approaches the four of them with his broadsword drawn, muses that the cast has arrived, and claims that fate is leaning in Uryū's favor before instructing him to kill Ichigo, Orihime, and Sado right here and now if he wants to prove that he is not a traitor.