This is what Ryanair said in yesterday's Full Year Results:
https://corporate.ryanair.com/news/r...wth-pre-covid/
Boeing MAX update
It is over a year since the Group was due to take delivery of its first Boeing 737-MAX-200 aircraft. Boeing are currently guiding a late summer return to service in the US for the B737-MAX. We believe it will be at least Oct. before we receive our first MAX-200 aircraft. We remain fans of, and committed to, these “gamechanger” aircraft with 4% more seats & 16% lower fuel burn, which will transform Ryanair’s cost base for the next decade. We are currently reviewing short-term growth plans and are in active negotiations with both Boeing and Lauda’s A320 lessors to reduce planned deliveries over the next 24 months to reflect slower traffic growth post Covid-19 in 2020 & 2021.