I pestered Chip and Philip about the book and they kindly confirmed with me some details which hopefully they won't mind me sharing in advance.
It will be an 8.5x11" hardcover at 330 pages, with a full novel-length text and 160 or so colour illustrations of Lionel's artwork. Pre-orders open this Friday and then it'll take 6-8 weeks for the books to return from the printers (I think they're using one recommended by Timeless, so it definitely won't be a disappointing Creation Books effort). Both Peter and Lionel intend to meet up to sign all the copies once they're done, and then all orders will steadily begin to ship out - hopefully just in time for Christmas.
With all that said, the book itself will retail for $100. I would say that's reasonable for both a combined Sotos text and what I assume will be an artist monograph (Lionel's first, no less), executed to the highest standard at considerable production cost. Both AS and 9BB are going all out and stepping their game up with this release, so I'm definitely going to get one. Hell, if it's cost effective, I may purchase several copies again (like I've done before for Desistance and Ingratitude) for people on this forum to purchase direct from me.
It really does feel like a return to the mid-2000s again, when Void Books took a risk in producing fine quality archival publications, instead of common trade paperbacks. Paperbacks have their place certainly, but I think this one will be most deserving of this presentation.
And another thing that the mid-2000s brought was the unearthing of Sotos rarities through the dedicated Peter Sotos Yahoo Group. Well, that group is no more and I suppose this forum thread has succeeded that for sharing news and gossip, so I'll mention this rarity here: the 2001 Mark Hejnar film 'Proxy', featuring Peter Sotos. This was previously shown as part of Chicago's underground film festival 'Z Fest' and recently I discovered the festival organiser had uploaded a Best Of compilation (with little fanfare) that includes it. You can watch 'Proxy' here, at the 40 minute mark:
https://vimeo.com/401685855