When trying to submit my new app to the app store, I noticed Apple has changed its website interface: after updating metadata and keywords and hitting \"submit for review\" I go
iTunes Connect have scrapped the "Waiting For Upload" state. The first sate is now "Prepare for Submission" and the next "Waiting For Review": https://developer.apple.com/library/ios/documentation/LanguagesUtilities/Conceptual/iTunesConnect_Guide/Chapters/ChangingAppStatus.html
Both meta-data and binary upload are handled in "Prepare for Submission". When you're ready with both you Submit for Review.