I checked
Amazon and it appears that the book is published by Random House. Both, Vintage (publisher for the softcover) and Knopf (publisher of the hardcover), are Random House sublabels. Since we know that Sony has close ties to Random House, it should be possible, at least theoratically, that this one will be released as an e-book one day.
Of course I don't have a clue about RH's policy for deciding which book gets digitized.