Update [1:38 p.m. PT]: Junji Ito has posted a statement on Twitter, clarifying his remarks on the podcast. Another user has translated it into English, detailing how Kojima's offer was more of a remark than any sort of commitment:
"In a past interview, I said casually that I received an offer from Mr. Kojima, but in reality, it was a remark made at a party where he said, 'If there is an opportunity, I may ask for your help.' I apologize to Mr. Kojima and all of the fans to whom I may have given false hope."
Thanks to @eigogamejikkyo for the translation. Sounds like it's not time to unfurl the streamers and "P.T. Is Back" banners just yet. Our original story follows:
Rumors about Hideo Kojima's next venture have been swirling for what feels like most of 2020 at this point. Over the weekend, news broke that horror manga legend Junji Ito had been contacted by the game creator to work on a horror game together.
"I do know director Kojima and we have been in a conversation that he may have a horror-based game that he may be doing," Ito said in an interview with Comic-Con 2020 (and first reported by Comicbook.com). "And so he has invited me to work on that, but there are no details on it yet."
So it seems as though Hideo Kojima's next game may in fact be horror-based, according to what Ito is saying here. Keep in mind that although the two have been in contact about working together, and although Kojima has offered Ito a role in creating a game together, it doesn't sound like the latter has definitely accepted the collaboration offer from Kojima.
It's long been speculated that Kojima's next game is a horror title since April. In an interview with BAFTA, Kojima stated that he would love to make a horror game so scary you'd "crap" your pants, and that he already had several ideas in mind.
Back in January 2020, it appeared Kojima Productions was expanding somewhat, as it was revealed the studio was planning on working on multiple games at once. Then in March, Death Stranding lead actor Norman Reedus stated that he was in talks to do "other stuff" with Kojima, before the game director started teasing work on a new project as recently as June. Kojima Productions has been busy.
If Ito and Kojima do work together on a new project, we hope it fares better than Silent Hills. Kojima, Ito, Reedus, and director Guillermo del Toro were all slated to work together on Silent Hills at Konami, before the project was ultimately canned in 2015.