Given that the last two Saturdays of August have already been booked by remasters of manga adaptations since 2014, I wouldn’t exclude that we’re not going to see three-part Curse Of The Nue before September. Assuming that Crimson Love Letter will be released on home video in October, they could have Momiji debut in the anime series just a few days prior on September 30. The four remaining slots on August 5 and August 12 as well as on September 2 and September 9 could easily be filled with one two-parter and two one-parters or—as they did in last November—with superb one-parters only. (I think that two two-parters would be the best, but also the most unlikely solution.)
While this certainly sounds like a terrible prospect, I would rather have a bit more anime originals than usual on a regular basis than the mother of all anime original hells sometime next year because they didn’t start in time to compensate for the endless manga breaks that we’re currently experiencing.