bookslover
Puritan Board Doctor
Per Amazon, the list price for the systematic theology is $60.
John MacArthur and Richard Mayhew are the editors. If I had to guess, I'd say that the various chapters of the book are written by Master's Seminary faculty. But, that's just a guess.
Might make an interesting read (look out for bones, etc.). I hope it's carefully done, as he's very influential in American Christianity.
UPDATE: Well, I was sort of right about the book. Perusing the small print from the excerpt from the book at Crossway's site, I notice that (1) six Master's Seminary professors provided drafts of several sections; (2) parts of chapters 4-7 are taken from other books and reference books published by MacArthur, (3) other books by MacArthur and others are quoted from and/or cited throughout; and (4) two of the seminary profs did the final edit for the entire volume (the finished book is about 1,000 pages). So, with (no doubt) freshly written material provided also, the book appears to have been cobbled together from various and sundry sources, along with written contributions from Master's Seminary profs, with MacArthur and Mayhue providing oversight for the whole project.
I'm NOT trying to imply that the book won't be valuable or useful. I think it will be. Just curious about how the book was put together.
Also: the official publication date, per Crossway, is January 31.