What is still unclear to me is from what point in time the "Nentan'i" refers to and the method by which we see this.
1) Yoshi took over FFXIV in January and if memory serves correctly, the Area redesign`project was introduced by about March.
2) The beast man strongholds in this patch will be open world areas. By the looks of it, they will be transposed onto existing parts of the main areas. Is the area redesign one big all at once patch or will it be done in parts. in the 2nd case, we would be seeing the beginnings of this in patch 1.19. `The first stage of redesigns`.