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