BFL states that warranty for even end-of-life products is to be no less than 1 year from date of sale (this can be found in the FAQs).    I believe that BFL has stated that a new product line is only when a re-design of the chip is done on a lower die size, so that is obviously a long time away from now.  65nm is still pretty new for a small company to make a custom chip on, and recouping the development costs will most likely take some time.