I'm loving all this Utada content we've been getting since the beginning of 2024 - a great consistent run!
Just to go over what you've written - is there a source for this that I've missed? The iD interview with Utada/Arca had them only saying they were talking about further collaboration and that they'd love to, but nothing was confirmed beyond the remix. Additionally, Hikki said they were working on new music, but an album wasn't explicitly mentioned. I don't think we're getting one for a while, anyway. My guess is 2026 at the earliest, unless they were recording with a super busy schedule last year.