Dickens and Darkwin will make an appearance in Assassin's Creed Syndicate, if you pre-order the game at least. Ubisoft has announced that those that pre-order the upcoming Assassin's Creed title will get access to the missions featuring the two historical figures.
These missions will take players into the inner sanctums of London's most influential men. Players are tasked with defending Charles Darwin's discoveries from those who would kill to silence him, as well as helping a friend of legendary writer Charles Dickens keep a secret that could get him killed. We still don't know if Charles Darwin and Charles Dicknes will have some kind of role in Syndicate's story aside from these missions.
Assassin's Creed Syndicate releases worldwide on the 23rd of October on PS4 and Xbox One, and on the 19th of November on PC.