[Kanji_The_Wanderer]

no, the companies knew how it ended, that was not a theory, because the true ending in the manga is in the movie. (Just different people, they swapped Near with L) So they already knew the true ending.

I think we are confusing each other, for I am not sure of what you want to know.

The movies were released first, but the true endig/story is in the anime.