Amy Bunger has started listing her newest stitch guides in her shop newsletter. Here is the Dec. 2016 edition. I'm hoping once her new website is available that you can find everything there.
She also lists new guides by Lori Carter. It's a fun read regardless, but you will get a glimpse of some of the designs stitched by Lori to give you an idea of what the finished piece will look like if you purchase the guide. That's always nice!
UPDATE: The February 2017 e-newsletter also shows off new guides by Amy, Lori Carter or Jill Wilensky.