This article from Purism ( From the Hackdesk: Librem 16 – Purism ) indicates an availability of Q4 2024 ( “Availability of the Librem 16 is planned for Q4 2024, so stay tuned!” ).
That article was written in May 30, 2024 and was predicting shipping before Dec31, 2024; i.e. 7 months timeline. Using the rule-of-thumb-for-Purism of actual ship date is 3x-to-5x, I’m assuming that it will ship between Feb 2026 and Apr 2027.