You can always look at the "ninja path" option to know what to do, there is all the guided content there.
Regarding when it will be completed, I'm not sure when, but I'm sure it won't be soon, since I'm doing the project by myself and I don't generate so much income to abandon my job and dedicate 100% of my time to this, so the content will be added little by little with the time I can dedicate to it.