And now StarWars.com has released the promotional copy for the Knight Errant novel:
"Sensing a sinister pattern in the chaos, Kerra embarks on a journey that will take her to many worlds and into fierce battles against even fiercer enemies. With one against so many, her only chance of success lies with forging alliances among those who serve her enemies — including a mysterious Sith spy and a clever mercenary general. But will they be her adversaries or her salvation?"
They've also provided the name of the cover artist: John Van Fleet, whose other covers include The New Essential Chronology, Darth Bane: Rule of Two, Star Wars: Allegiance, and Star Wars: Millennium Falcon.
Once again, the preorder page is live at Amazon; I expect the promo copy and cover will wind up on that page in the near future.