If you are looking for ebook versions, that will be available for pre-order soon. As for an audio book edition, that is still being determined. But feel free to contact the publisher to let them know you'd like to see/hear this book in audio if you want it.
In the meantime, please share this news far and wide! I have another book drafted... continuing into the Revolution, waiting in the wings. Pre-Sales and the success of this book will determine the fate of the next.