Intel believes that the next 10 years will not be plagued with shortages and delayed node releases as its latest road-map shows that die shrinks should occur every 2 years up until 2029. This means that the 7 nm node should be available by 2021, the 5 nm one by 2023, 3 nm for 2025, 2 nm for 2027 and 1.4 nm for 2029.
https://www.notebookcheck.net/Latest-Intel-roadmap-shows-1-4-nm-CPUs-scheduled-for-2029.447078.0.html