I want them to adopt the following techniques for setting materials:
For each setting they release three products:
1.) LORE BOOK: This book will tell the stories, describe the personalities, and establish what makes the setting the setting ... but will have absolutely no crunch or rules at all. They may revise and update the book to add information as timelines move forward in the setting, and make adjustments to account for changing cultural values, but the core of this book will stay the same.
2.) EDITION CRUNCH: A book that mostly has stat block NPCs, monsters, magic items, campaign specific subclasses, campaign specific feats, etc...
3.) RESOURCES: Adventures, maps, miniatures, etc... would also be released, but they'd be add ons that could be ignored (although the ramifications of an adventure path might impact future editions of the Lore Book).
When 6E arrives, I'd like them to set a tentative schedule for lore books and crunch books for FR, Greyhawk, Athas, Krynn, Spelljammer, Feywild, Ravenloft/Shadowfell, etc....