3 planes, not 4.
2 are already in Porto and the will arrive in October. Adding to the new routes, those planes will make 2 daily connections to Madrid, one daily connection to Paris and London-Stansted a a connection to Brussels-Charleroi 4 times a week. I think with all those connections all the 3 planes will have a full timetable. But in the other hand, MOL, interviewed by a portuguese channel said Ryanair will open 15 new routes. Only 9 have been announced. I don't know what to think. PS: Here's a video with the "interview". It's in portuguese but what MOL said is in English.
Ryanair abre 1ª base em Faro - Sapo Vdeos