User blog comment:Catfishperson/Marketing. (?)/@comment-25101690-20160506101932

Mevans is very careful with anything like that. Making a LOTR based mod commercial would require a LOTR license, which is probably more expensive than Mevans could ever earn from the mod.

As a personal point, I think that everything that becomes commercial has a high risk of focusing too much on making more money and too little on improving the product itself. That's why indie games are still often better than AAA games.