Well, not all the content, yet. It’s launching with the original eight areas (hoping with all the current quests in those areas, though it’s not clear, since some stuff was added to those after launch and I’ve never been 100% sure I did all of it). Tokyo and raids and whatnot are coming later, for free. And then maybe we’ll actually get new content, but that could be ages…
Also, it’s going to have actual, definite levels instead of the defacto ones the classic game pretended it didn’t have, and combat’s different, and so on.