Justin Drake, an Ethereum 2.0 researcher at the Ethereum Foundation, said that ETH issuance might see a 90% reduction
Source: https://cointelegraph.com/news/ethereum-researcher-ethereum-to-reduce-issuance-ten-fold-by-2021
Ethereum Researcher: Ethereum to Reduce Issuance Ten-Fold by 2021
July 5, 2019
CoinTelegraph