Answer: New NSF Astro-Core has "target submission date" of Nov 16! From the NASEM Committee on Astronomy and Astrophysics meeting last week, Chris Smith said this "is not a deadline but proposals submitted after the target date may be considered for funding in the following fiscal year" (see pic). 🔭
Ummm until yesterday there were actual deadlines listed here 👀 (Maybe this is just the previously discussed move to rolling deadlines, but it seems ominous when bundled with all the rest of the new "The Astro-Core program is anticipated to be especially competitive in Fiscal Year 2027" guidelines.)