There are a LOT of rules options in the DMG which are not in the SRD. An individual license from WOTC would allow those, and a compatibility mark including the 5E Ampersand-dragon. Either of which is worth a bit of cash.Glorelendil wrote:
As far as I'm aware, it would allow them to use some additional classes/subclasses, backgrounds, and feats. (And maybe some spells?) I don't believe there's any rules difference, just character options.
Likewise, it would benefit WOTC... getting a licensed-by-Tolkien-Enterprises product out with the 5E ampersand-dragon would likely help sales overall, especially if it's the "Requires the 5th Edition Player's Handbook and Dungeon Master's Guide" type. Plus, direct royalties.
But there are good reasons not to go that route. One is that a standalone book generally sells better than a supplement. Another is that of additional approvals, and additional costs and royalties. And the restrictions that WOTC might impose on rules changes.
Jon's said it's not licensed by WotC... which implies it's most likely just a setting book with some new classes.
As for the SRD, the SRD was announced to several other companies months before it was made public. It's not impossible that C7 had the SRD before the public.