Blizzard sent out the following

Get ready to explore the heart of Cuba in Overwatch’s newest map, Havana.
Discover the old colonial fortifications and fight through the colorful
streets of this coastal city, now available on the public test realm (PTR)
on PC.

Havana is a new Escort map set in the region where one of the infamous
members of Talon’s council, Maximilien, operated. For a time, this shadowy
organization plagued the local populace with their corruption and crime.
Eventually, an Overwatch Strike team was deployed to extract Maximilien
with the purpose of gaining intel on a mysterious Talon counterpart,
Doomfist.

Will you be checking this out?