I just don't see anything that suggests there will be multiple companies releasing adult novels simultaneously, and I can't even think of a modern license that does that. .
Funny story. Several years ago, as a Tor editor, I tried to acquire the book license to a certain popular property. Let's call it SPACE VIXENS. The deal was all worked out when, at the last minute, the licensor declined to offer us "exclusive" rights to adult novels unless we paid them a lot more money.
"Whoa there," I protested. "Without exclusivity, what's to stop you from licensing a competitive line of adult SPACE VIXENS novels at Roc or Del Rey or wherever."
"Oh, we would never do that, Greg."
"Great. So put that in the contract."
"Not for this amount of money. You'll just have to trust us."
"I don't think our Contracts Department recognizes 'trust us' as a sound legal principle."
Needless to say, those books never happened.
