When does Red Queen return?

Red Queen is a young adult dystopian fantasy romance novel written by American writer Victoria Aveyard. It was published in February 2015, it was her first novel and first series. Aveyard followed up with three sequels: Glass Sword, King's Cage and War Storm. In a year known as the New Era, people are divided by blood- those with Red and those with Silver, the latter having supernatural abilities.