There are two known cases where the timeline of the canon Prime universe was violated that could have an impact on the events in Discovery or where the story of Discovery could have an impact on the alternate timeline. Yesteryear In 2236 Michael Burnham lost her parents and was adopted by Sarek and Amanda. Shortly afterwards she runs away from home but is rescued by the Red angel and Spock. In 2237 Spock underwent the Kahs-wan. In one timeline he is helped by his "cousin" and becomes the Spock we know and love. While in the other he dies, which leads to Amanda separating from Sarek, and dying in an accident at Lunaport. For me this rises several questions, including: Were was Michael during Yesteryear (2237)? What happened to her once Amanda and Sarek separated, and Amanda died? How was Control defeated without Spock? Kelvin Universe In 2233 the Narada destroys the USS Kelvin - or it does not. Maybe in 2236 Michael Burnham loses her parents and is adopted by Sarek and Amanda. We have similar questions as before: Did the Federation-Klingon war of 2256 still happen? Is Admiral Marcus being controlled by Control? How is Control defeated? Please, I welcome any and all ideas.