Someone actually using Opera 15+ may correct me, though - about content blocker, my guess is it will be extension only. Passwords are saved, but in a Chrome manner. Being able to put tabs at the bottom may come, although I bet it is on very low priority, "old-fashioned" menu probably not at all. And you can log in to Opera Link website, but that's not what I call "work with it". However, the dev team should be working at least on this one.
