I assume we are talking about the Show case before the live letter. I think it is something aimed at the NA/EU servers/Data centers. It would effect JP servers also but maybe less so. Why? It is at 9:30am Saturday in Japan. It is being translated into English(the live letter right after is not). It is end of day for us in the US and a bit late for Europe. Since the NA and EU had their data centers split and we had to move for friends, raid and other we had to give up something. Last, Yoshi was talking about doing this in Aug of 2019. Maybe the DF and PF will be linked between NA DCs or more. More housing would be nice but that doesn't seem to be a show case thing, more of a live letter. Anyway, that is my guess based on something big and that it seems targeted to the west.