Henford-on-Bagley is a new ridiculously small world again

From a technical point of view, it doesn't make sense to limit the size of worlds since "worlds" as such do not exist in the game. Worlds are just a collection of smaller maps with 3 or 4 lots each and a lot of set-dressing. The only place where worlds exist is in the 2D image used for the GUI.

So from a technical point of view, it shouldn't affect performance AT ALL to have 3 neighborhoods with 4 lots each or to have 6 neighborhoods with 4 lots each, since only one of those neighborhoods and only one lot in that neighborhood would be loaded at any given time.