That means, Drupal will work as before without Javascript?
When I started with Drupal, it was one of the very few CMS working in all features (especially admin) with "Javscript OFF". While I understand that there are features in AJAX some people do like, I hope Drupal core and main modules will stil not depend on any JS functionality.
Just because we add Ajax features doesn't mean that Drupal will not work without. Any Ajax functionality being added must not harm the user in any way when JS is off. As it is now, we only have the Ajax autocompletor: a pure enhancement which is simply not present without JS.
Steven Wittens