Bleach anime is not going to end: we'll have fillers until the new arc begins!

The calendar for Bleach episodes in March hints that we're going to have a fillerology ala Naruto before the new arc post-timeskip begins.

How much will this fillerology last? 3 months? 6? 1 year?

311	"The Soul Detective・Karakuraizer Takes Off Again!" "Tamashī no keiji・Karakuraizā sai hasshin!" (魂葬刑事・カラクライザー再発進！)	March 1, 2011	—
312	"Inauguration! The Brand New 2nd Division Captain!" "Shūnin! Arata naru ban ni ban tai taichō!" (就任！新たなる二番隊隊長！)	March 8, 2011

Could this be true? Or is this a distraction to throw us off?