According to Monthly Shounen GanGan magazine, a new manga series of "Bamboo Blade
" titled "Bamboo Blade B" will start from the next issue of GanGan magazine to be released on January 10th, 2009. It's a side story of "Bamboo Blade" and about different characters.
Source: Scan of Gangan magazine
The original Bamboo Blade series continues publication.