Image imported from derpibooru 
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So I couldn’t help but notice I KNOW these shapes.
 
Zephyr Heights is Canterlot! O.o  
Maretime Bay is Baltimare/Horseshoe Bay… but there appears to be new water south of it? New water may just be for promo material simplification, or may be a canon change to Equestrian geography.  
Bridlewood is a seemingly a new town, south of Tall Tail near the West Cost.
 
Sorry for covering up your face, Izzy, you’re still my favourite!
 
How did the pegasi come to control Canterlot, I wonder?  
At the very least we know some major event has caused a few places to change names… either due to being captured by a different governing body and being renamed or simply being renamed as time has gone on. This suggests to me the time skip is VERY BIG.