How long will the zanpakuto fillers last?

Fillers Do not last that long,this one in paticular will last as long as there are still zampakto on the loose,Which means that once everyone learns to tame their zampakto and ichigo goes and sees where muramasa is at and will probably either fight him there oder another outcome will come about. but yea,my estimate is that it will end in about 3-5 episodes more,provided that they don't stall much with the fights.

Well the Zanpaktou filler is gonna end until their owners finally get their Zanpaktous back. Which is going to be quite a while if Du think about all the characters in Bleach that has shikai. But just enjoy the filler, I think it's pretty good.

looks like it will be at least another arc sadly because as of episode 256 it seems a new story line is starting and wont finish quickly. im rather sad about this.

the zanpakuto filler arc ends on april 13, oder episode 266 , because that episode is named "ulquiorra vs. ichigo" so... yea it only makes sense .

Nah its like from 230 - 266. Although 267 might as well be considered filler.