During the most recent developer Q&A it was revealed that the next World Update will focus on the UK (and possibly Ireland). Apparently this will include new procedural buildings, with a focus on churches and cathedrals. I really welcome this (esp. churches, as they are more numerous), but IMO there is also a pressing need for Manor houses (a.k.a. “stately homes”), as shown in the example below.
I’d like to add that the “icing on the cake” (an appropriate metaphor?! 
) would be AI identifying and generating procedural cottages (and farm houses) with thatched roofs please!
Here is an example of a warehouse which should be a manor house:
