Hi saltyprof,
and welcome to this Apple (user-to-user) Community!
Re: "ADA Accessibility Checker in Keynote and Pages: I am wondering if Keynote, Pages, Preview and other Apple content generation tools have or will have a built in checker for upcoming ADA accessibility compliance requirements? "
We are all Apple users, like yourself, in the community, so mostly we don't get to know of Apple's upcoming plans. Apple doesn't always release details of upcoming improvements or features ahead of time, although an announcment from May '25 did Apple unveils powerful accessibility features coming later this year - Apple
The newsroom is the place to watch for the announcements Apple makes.from time to time.
Apple's developer community seems to be provided with much training and documentation.
Eg: Accessibility | Apple Developer Documentation
You may want to communicate with Apple's Accessibility support team:
Eg: To provide feedback about an accessibility feature on an Apple product,
you can email the Accessibility team: accessibility@apple.com.
(You could provide a link to this discussion thread, if you wish)
or
If needed: See: How to contact Apple for help with accessibility features - Apple Support
All the best :-)
