I just finished a concept for one of the characters I plan to make for my playthrough. I don't know what the final setup will be, but at least I have one character down.
The character is also going to be the protagonist of an origin story that leads to the events of D:OS 2. Just a heads up:
https://docs.google.com/document/d/1PK07ko-Z4dPAiOTyUnlYTWq-w9Z1svSpUHZMErHky-E