User blog comment:Godisme/The morning of a new adventure, Walrot Seeken, Treasure Hunter/@comment-84.13.41.227-20130711182147/@comment-77.253.84.25-20130711205013

I would say (and hope), at least 3-4 years. Maybe even longer, since at the end of Chapter 340 we got something like 'entering second phase'. If we consider RAVE as example, it would be like when Lucia was introduced into series, so it's like an only halfway of a story (and again I hope)