Author Troy Denning goes into detail on Abeloth, Ben, Allana, tying into the Legacy comics, and all that other spoilery stuff we read in Fate of the Jedi: Apocalypse in an interview with Suvudu. He also talks about working with multiple authors, like this interesting bit from the New Jedi Order:
…When I was writing Star by Star, I got the manuscript for Balance Point and saw that Kathy Tyers had followed the outline exactly. She did exactly what the outline had called for, but it was all about fifteen percent off of what I thought she meant. I was 400 pages into Star by Star and I thought, “Oh my gosh, I have slightly different interpretations of these characters than Kathy does!” So I had to go back and rewrite the first 400 pages before I could go on.
He also talks about the differences in Fate of the Jedi and Legacy of the Force, the ‘Jacen Solo saga,’ the last words of Apocalypse, and leaving things open-ended.
Meanwhile, Rooqoo Depot talks to Lucasfilm continuity guru Leland Chee.