A sequel might be in the works. The Order 1887?
https://www.facebook.com/TheOrder
The Order 1886 official facebook page released some concept art of what major cities besides London could look like if set in the same alternate history as The Order 1886.
Berlin, Florence, and Sydney below.
And now check out this video. Could the Order be making its way to the Americas!?
https://www.youtube.com/watch?v=WhMz45mFTu8