I just reached a milestone in my work on the revised edition of B/X Essentials: I've finished the initial layout pass on the revised Core Rules!
Here's a preview of the table of contents, so you can see what's included and how much space it takes up.
The revised Core Rules will go on to form the basis for the mythical all-in-one hardback edition. Here's where the extra bits of content will be inserted to form the all-in-one book:
In conclusion: this is going to be awesome!