And the fans have taught him about pledging, so he's using Pledge Music to raise funds to make it. It's already been massively oversubscribed, and he promises it'll appear in shops as usual when it's done, so basically it'll just be another John Barrowman CD even if you don't want to buy it till the physical version is out. He's rather vague about what sort of songs will appear, saying that it'll be for the fans, so presumably more along the line of the musical theatre ballads he's released in the past. More on his website.
Here's the video.