(in the Legends Timeline) is now up to date and probably as finalized as can be expected. As I state on the page:
As of April, 2014 the Expanded Universe was deemed non-canonical. From September, 2014 moving forward everything LucasFilm produces is considered part of the main Storyline. The old "EU" was then rendered "Legends".
This is the chronology of the Sith Lords within the Legends universe. It is likely not to change much from this point forward since new Legends material is unlikely.
You can check out the Chronology by heading over to my website.