The author's notes in the 13th volume of Ryohgo Narita's Durarara! light novel series announced last week that the first arc of the series has ended. However, Narita assured fans that the series would continue into a second arc. The new arc will take place two years in the future, and the novel series will be retitled Durarara! SH .

In addition, he wrote that plans are being made for the 10th anniversary of Durarara!, and that these plans will be unveiled in Durarara! SH in the spring and at upcoming Dengeki events.

The Dengeki Bunko publishing label describes the 13th novel:

[Note: Highlight the text below for the story, which contains spoilers]

Ikebukuro, Tokyo. This town has been turned into a melting pot of chaos. Everyone involved with the headless rider is drawn into the situation, and all are trying to bring about the conclusion. The two boys that used to be best friends now fight against each other's ambitions while sustaining more wounds. The two men who used to get along like dogs and cats now fight to the death in a battle that surpasses rage. The girl who used to watch things from the frames of her glasses now becomes desperate to overcome her past self. The irregular lovers who were supposed to be happy must challenge the trial that face them, even if they may be separated. Finally, the formerly headless rider reveals herself to the town... The curtain falls on the warped story of love in the same place where everything began...