Can't recall if this was actually confirmed or just assumed, but it's mentioned in this Guardian interview with Jonny that he's scoring the new movie.

"And he's already started work on the next Paul Thomas Anderson film (rumoured to be starring Leonardo DiCaprio, Sean Penn and Alana Haim), which will be their sixth collaboration, as well as another film with a different director. "I'm incredibly lucky that Paul indulges me and gives me so much time to experiment and compose," he says. "That's not usually the case in Hollywood, where the soundtrack writers are often very far down the food chain, and are sometimes given only a couple of days to bash out a complete score."

https://amp.theguardian.com/music/article/2024/may/10/jonny-greenwood-im-still-arsing-around-on-instruments-like-when-i-was-a-kid

This looks very intriguing...

Treasure hunt to pass a moment in overwhelming fun


(1:53:04)


(20:20)

Anyone got any idea what's going on with this movie? Are they on a long hiatus? Have they wrapped? What's the dealio?