At the same time, every non-distributed beer of his that I can think of has been sold on-site only (the various grape blends), to-go but only at Cantillon (50N), or at specific bars (Blabaer, Zwanze sort of) or some combination. It seems to me that, whenever this does come out, it'll be one of:
1) Release at least the size of a typical seasonal, sees typical international distribution.
2) Release at least the size of a special beer like 50N, sold to-go at Cantillon at low limits.
3) Release at least the size of a typical Zwanze, served as/alongside Zwanze (though presumably being bottles only would make serving as Zwanze tricky).
4) Release about the size of a typical special grape blend, on-site only at Cantillon.
Any of those could turn into shitshows, and if it's 3 or 4 then whatever bottles do leak out will obviously be highly coveted, but plenty of people will be able to try it. Of course, he could do something entirely different, who knows! It would be neat if it was like Framboos 2011 and sold at a release party.