Carkitt Market
The biggest surprise revealed in the Diagon Alley announcements is an entirely second street running parallel, effectively doubling the area of the expansion. There are two paths into this additional area, one at the front of Diagon Alley near Weasley’s Wizard Wheezes and the other accessible via a street passing by Gringotts called Horizont Alley. That new street name came from author JK Rowling.
The big new area is called Carkitt Market, also named by Rowling. It’s inspired real-life London locations like Leadenhall Market, but given a wizarding twist. It’s a huge covered space linking the backside of Diagon Alley to the far right borders of the expansion. Within Carkitt Market will be live entertainment, shopping, and other surprises yet to be announced.
Souce: Inside The Magic