is bleach: thousand-year blood war (bleach: sennen kessen-hen) episode 32 filler?

Atop the platform raised by 12th Division Captain Mayuri Kurotsuchi, Kisuke Urahara instructs the assembled Shinigami and Sternritter to hold out their hands, which medium-sized glass orbs proceed to manifest in. With those present focusing their Reiatsu into these orbs at Urahara's request, the arch of the gate forming behind Urahara begins to thicken and expand inward to form a full door, which he nods at.

However, in Mayuri's laboratory below, the technicians are startled when the screens warn them of an unknown anomaly and the ground begins shaking, causing Niko Kuna to lose her balance.