Ryanair's growth
It's ridiculous to think that FR will continue to grow as they are doing right know.
But the truth is that it could grow much more. There are lots of destinations not served or underserved that could sustain a high growth rate. For example: sun destinations like Egypt, Greek Islands, Madeira, Tunisia and so on.
They could also start flying to Slovenia, Bulgaria, Cyprus. They could invest a lot more in Porto, Prague, Romania. And there is also the opportunity of longer flights. Connections from Portugal to Cape Verde. Connecton to the USA, and so on.