as much as nine destinations are planned: London, Dusseldorf-Weeze, Milan-Bergamo, Мadrid, Girona, Brussels-Charleroi, Oslo, Stockholm-Skavsta and Kaunas
That would appear to set up Ryanair for a considerable degree of head-to-head competition against Estonian Air, who coincidentally fly to London, Milan Malpensa, Barcelona, Brussels, Oslo, Stockholm and Vilnius.
Estonian fly additionally from Vilnius to Amsterdam, Milan (from December) and Stockholm, while Ryanair fly to Milan from Kaunas.
One may also wish to consider that Estonia as a country has a population of less than 1.4 million. Lithuania, where Ryanair became the dominant carrier following the demise of FlyLAL in 2009, has a population of around 3.3 million
Assuming pee is correct, the level of route overlap does not look good for the newly nationalised Estonian.