I wouldn't be surprised to see Munich go Daily or double Daily if the route proves popular from next summer.
More likely Easy will add rotations to Berlin , Edinburgh and Glasgow (given FR appearing on the route from STN), Amsterdam Milan and Belfast.
Summer routes to Heraklion or Paphos may see increases as well
As for new routes I wonder if they would consider Dubrovnik , Seville, Porto or reintroducing Vienna.