I am suffering from the flu (actually fell asleep driving home from work, though thankfully I woke thanks to the rumble strip on the side of the road) so perhaps this is all a delusion of my fever ridden mind. But Pacesetter Games & Simulations, the one by the Barshes, is apparently going to produce books of their version of B/X.
By my count, this is at least the 4th version. You had Labyrinth Lord, then Adventures in the East Mark, then B/X Essentials, now this. I guess maybe Adventures in the East Mark is more of a BECMI clone and it never got past the first set. At least in English.
Anyway, I'm not sure the elder Barsh ever finished the kickstarter for the Acaeum (sp?), but this is being done by his son, who apparently did finish his 5e kickstarter.
OTOH, apparently it's not written yet and somehow promises to be done by June 30th.