This is the new schedule For the books

M - Futuristic Four,  Modern Four & New story: Age Doesn't Matter(hirogo)
T - 16 Years, Return & New Story: Together Forever (Runaway Hiccstrid)
W - Unsolved & New Story: Our Case (Wildehopps)
T - Hiccup & Two Depressed Birds(Damirae)
F - The Survivors, Broken Friends, Underground & New Story: She's On Her Own (female Hiccup)

It will take time for the stories to be set.