When it will happen is anybody's guess. Killap has a life and a day job, and he works on the RP whenever he gets a chance. What will be included is mostly bug fixes. The restored content is complete and playable. None of the bugs currently present are game crashers, just minor things that Killap wants to address. There will also be a few map updates. Pixote or one of the others working on the RP could tell you more.