Well, now Google is pushing and promoting the new AdWords interface to more advertisers. Google said so on their blog, plus they are promoting it within the AdWords console and they are sending emails to advertisers encouraging advertisers to try it out.
The email says "you have exclusive access to the new AdWords experience." "Congratulations. You're invited to use the new AdWords experience. Sign in to your account and click "Try the new AdWords" in the bottom right corner," they added.
Here is a copy of that email:
Google added, "we’re rolling out the new AdWords experience to more of you within the next few months."
So get ready, it is coming to more and more of you in 2017!
Forum discussion at Twitter.