If the new rumors are accurate, the 5nm Hopper architecture is delayed to the 2023-2024 timeframe. Hopper is believed to be a multi-chip module but it's still unknown whether there will be a gaming variant of Hopper.
The Lovelace architecture will allegedly be fabbed on 5nm and will be another monolithic architecture. It's expected to make its debut in 2021-2022 but it's unknown whether it will be made by TSMC or Samsung.