Is it possible to get a legacy email of our converted to the new version along with turning V3 of the editor on in our account when that happens?
By V3 editor do you mean our Third Generation Editor? If so, the good news is these templates are already available in your account. You can access these templates by creating a new email through the "Create" button from the Home or Campaigns tab in your account. We also would be happy to help recreate one of your Legacy Newsletter emails to these ThirdGeneration Email as a courtesy. To do this we would need you to email us at social_support(at)constantcontact(dot)com with your username, a reference to this post and the name of the campaign you wanted recreated. In the meantime, here's an article from our Help Center focused on switching to the Third-Generation Editor from the Second-Generation Editor.