I was just reading the new
Game System License for 4e.
From the look of things, you cant just reproduce the ruleset in a non-wizards book like what was done for Conan and Lone Wolf, so any 3rd party books would only be add-ons to the core rulebooks. You can add to or note what rules to be omitted (as long as it dose not describe Chargen or level advancement), but you can't 'redefine' any of the core rules. The funny thing is, that when you reference anything from the core rulebooks, you cant even note the page number (this it do the the fact that there are going to multiple versions of the core books. So how many PHB do you really need?).
They impose a
Quality and Content Standards clause that states: no excessively graphic violence or gore; sexual situations, sexual abuse, pornography, gratuitous nudity of human or humanoid forms, genitalia, or sexual activity; or existing real-world minorities, nationalities, social castes, religious groups or practices, political preferences, genders, lifestyle preferences, or people with disabilities, as a group inferior to any other group or in a way that promotes disrespect for those groups or practices, or that endorses those groups or practices over another. You know, family-friendly sh!t! So any mature settings for 4e is out of the question.
No one can publish a line of books that is for 3.x and 4e. So if Mongoose converts Conan or Lone Wolf to 4e, then they would have to discontinue all of the older books (they would be free to sell off their unsold copies), remove any electronic files of that edition, and can no linger support the previous edition.
So in all, a reference-only/rule supplement campaign book would be worthless for a rule-set that is vary incompatible for Conan. You would lose a lot with the Quality and Content Standards. And this new license, like the game it supports, total bullshit! Thankfully, it only covers 4e, and is not retroactive with older editions. THANK GOD! :roll: