Regarding Origin's exact length (without commercials), it is most likely 92 minutes (23 minutes per chapter). There are two shows that usually air in its time slot (technically three, since the first one consists of two related anime shows), and each one is 46 minutes long.
So are they shoving 4 different chapters into one showing or are they going to be 4 different episodes?
Or, if it helps you out, think of it as a four episode mini-series airing all on one night.
The reason why people think Red is a stoic, calm and collected character is because both his in game sprite and official art show him as being serious, and unlike the other protagonists who are shown to be happier.
To be fair, Red does smirk in his Generation I artwork, but I think that the re-design was meant to allude to his character development. Just because Origin Red is cheerful in the beginning doesn't mean that he will stay that way; there are four chapters, after all, and things get serious as early as the second chapter.
Pokemon The Origin Latest Trailer! Red VS Green! - YouTube
No FRLGirl in the picking starters scene... there go my hopes... oh well
ポケットモンスター ジ・オリジン: 週間番組表 : 番組情報 : テレビ東京
The official TV Tokyo summary. It says very few info. Only 5 VA in all the special.
staff page, which mentions that more characters "who will play an active role" will be announced in the future. We know that Lance will get to speak and yet he isn't mentioned.
I wonder if there's any chance the DVD release will have any extra content and maybe it could have like a bonus "report" starring FRLGirl separated from Red's story... but that's probably unlikely