An icon for “Final Fantasy XV: Pocket Edition HD” has appeared on the United Kingdom PlayStation Store.
The icon appears in the “Games > New” section of the store:
When clicked, however, the following error occurs:
Final Fantasy XV: Pocket Edition HD is an abridged version of Final Fantasy XV with less demanding graphics developed for iOS, Android, and Windows devices and first released in February. Square Enix has yet to announce a port of the Pocket Edition for consoles.
Here is an overview of the smartphone version, via its store pages:
About
Explore the world of the fifteenth Final Fantasy in the palm of your hand
Final Fantasy XV is now playable on your smartphone!
“Explore the world of Final Fantasy XV with a cast of cute and cool characters! ”
Now you can enjoy the Final Fantasy XV story across 10 exciting chapters
Tap to move, tap to talk, and tap to fight! Easy for anyone to pick up and play!
Story
The Tale of the Chosen King, Savior to the Star.
After years of fighting, the nations of Lucis and Niflheim at last agree to an armistice.
As a symbol of this promised peace, Noctis, crown prince of Lucis, is to wed the Lady Lunafreya of Tenebrae.
The prince sets forth for his wedding on the eve of the signing ceremony, sent off by his father, King Regis.
Unbeknownst to Noctis, however, the journey ahead is fraught with perils…
Thanks, @Hamasukei_6.