This just in from the current issue of Scoop:
Initially this volume (the Artist's Edition) was set to only be available directly from IDW Publishing, but retailers and consumers can now look for it to be rush solicited through the normal Diamond Comic Distributor channels.

I just checked IDW's site, and it's still claiming that this will be available exclusively through them.

"Come with me to Canada. Toronto is just like New York but without all the stuff."