On Tuesday, Ryanair announced that they'll be flying between Stansted and Zweibrücken as of October; yesterday they announced four new routes out of Bremen and five out of Marseille, including two domestic routes (Marseille-Brest and Marseille-Lille). The further development of domestic routes within France parallels the announcement in mid-March of the airline's first domestic routes in Germany and France.
These routes seem to be opening up a new strategy for the airline. It will be interesting to see if they'll be followed up by more domestic routes in France, Germany, and elsewhere.