Assassin's Creed Black Flag Temporarily Removed from Steam, Rumors of Full Remake Unconfirmed

Assassin's Creed 4 Black Flag has been removed from Steam due to a "technical issue" and is currently unavailable for purchase.
Rumors suggest a full remake of Black Flag may be in development, but these are currently unconfirmed.
The original Black Flag can still be played on modern systems via backward compatibility and other ports.
Multiple new Assassin's Creed projects are in active development, including the recently announced Mirage.
Black Flag is considered one of the best Assassin's Creed games ever thanks to its pirate gameplay and gorgeous open world.

gamerant.com

Relevant topic timeline:

9/6/2023

Assassin’s Creed tabletop RPG puts the video game’s most divisive feature at its center

Ubisoft's Assassin's Creed franchise has been adapted into a tabletop role-playing game by CMON, focusing on the modern-day narrative throughline and utilizing the Animus machine to recreate exciting historical scenarios.

10/2/2023

Assassin's Creed Mirage Returns to Stealth Roots with Gadgets, Notoriety System

Ubisoft has released a seven-minute promotional video highlighting the stealth gameplay and features of Assassin's Creed Mirage, emphasizing its departure from the open world RPG format of recent titles in the series.