Sapmagic, Riot Gortok, and Mango Thunder detail the upcoming reworked placement system and the two brand new tiers in the 2019 Ranked season. For more information about how these changes will affect the top of the ranked ladder, visit this blog post: https://nexus.leagueoflegends.com/en-us/2018/09/dev-top-tier-changes-to-ranked-for-2019