User blog comment:DaNASCAT/Technical Update: November 22, 2011/@comment-1032852-20111123161741/@comment-1411998-20111123164232

This redesign happens only on the wikis with beta navigation enabled. For the second part - yes, it may be harder to find. It's up to admins to let the users know where add a page has moved. Or you can setup a create box somewhere on the main page like on my wiki.