According to the filing, the retailer is now saying that they will launch Nook Stores in more countries by the end of fiscal year 2014 (April 2014).
This presents a delay from B&N's previously reported schedule, which was to open those Nook Stores by the end of fiscal year 2014. No, you didn't read that wrong; this detail had already been reported almost a month ago. It merely confirms what B&N said in their press release when they released the most recent quarterly report (in August).
Update: It looks like I goofed; this is new news. I could have sworn that the delay to the end of FY 2014 had already been mentioned previously, but now I cannot find it.
Yes, it does represent the second time that B&N has delayed their expansion plans (which were supposed to have been completed by June 2013 and then December 2013) but it is still old news.
Just about the only thing that is new today is that this could cost B&N money:
This delay may entitle Microsoft to defer a portion of advance payments until the target expansion requirement is met.
The new Nook Stores are being launched in partnership with / under contract to Microsoft as part of the Nook Media investment deal. Microsoft had agreed to pay Nook Media $25 million a year for five years for help in "acquiring local digital reading content and technology development." The MS investment is probably also the reason that Nook Media has put more effort into developing the Nook Windows 8 app instead of updating the outdated Nook apps for OSX and Windows.