- It's not Light Yagami and L per se who are returning for the fourth movie in this saga. It's their 'heirs' or 'successors'.
- DNA plays a part in passing on this inheritance. Whether that's metaphorical or actual, we don't yet know. Just that certain traits and characteristics of Death Note's main protagonist and antagonist are handed down to a new generation.
- Nor do we yet know whether it's L's successor or Light's in possession of said Death Note this time around.
But is this real information or merely rumour grown wild?
On the Trail of Truth and Conjecture in Death Note 2016 Storyline Leaks
Nevertheless, I thought that all we genuinely had to go on was what we learned from the trailer after TV's live-action Death Note adaptation. All else had to be Chinese whispers with each journalist and blogger building upon the rest, mistaking conjecture for fact and finding more in that trailer than had actually been there.
I was wrong.
Following a trail back from sites like iSchoolGuide, through the massively influential GameZone and Tokyo Otaku Mode, I eventually tracked an apparently pure strand of extra information back to Japanese website AnimeAnime. The Otaku Mode article is pretty much an English language translation of the latter.
Therein, under the unprepossessing title Production Announced on Death Note 2016 Movie (September 16th, 2015), the narrative seemed to separate information from the trailer and that gleaned from official sources elsewhere. But no source.
AnimeAnime linked back to the Warner Bros. website for Death Note 2016 (still very much a working title by the way).
I've scoured the site and cannot find much more besides the trailer that we've already seen, plus a rather nifty second index holding screen.