A Court of Thorns and Roses (A Court of Thorns and Roses #1) by Sarah J Maas is expected to be published May 5, 2015. The novel will be Maas's debut adult novel. Maas's previous novels are Throne of Glass, Crown of Midnight and Heir of Fire . The Throne of Glass series is for Young Adult's. The Assassin's Blade is a prequel to Throne of Glass. The novel is made up of five novellas. 

The Heir (The Selection #4) by Kiera Cass comes out May 5th 2015.  The first three books in the series are The Selection, The Elite and The One. The Selection tells the story of America Singer, a girl who does not want to be a Queen.  For the 35 girls that were selected meeting the Prince and falling in love with him is a once a lifetime change to change their lives. For America being part of the selection is a mistake. America wants to be with Aspen, her first love. As she begins to get to know Prince Maxon, America sees possibilities she never imagined could be possible for her. 

The Selection Stories includes 2 novellas. 

The Lunar Chronicles series begins with Cinder, Scarlet and Cress. Winter (The Lunar Chronicles #4) by Marissa Meyer will be released November 24, 2015. Cinder is a cyborg. Luckily she is also a Mechanic, which comes in handy when her many old parts need a tune up. 

Fairest: The Lunar Chronicles: Levana's will be released January 27, 2015. 

Richelle Mead's Bloodlines series will come to its conclusion with the last novel, The Ruby Circle (Bloodlines #6),  to be released February 10 2015. The bloodlines series began with Bloodlines, The Golden lily, The Indigo Spell, The Fiery Heart and Silver Shadows. Bloodlines tells the story of Sydney Sage and alchemist in charge of hiding Moroi princess Jill. Sydney is not supposed to become friends with the Moroi or their guardians the Dhamphyr. To the Alchemist the Moroi are creatures of evil. 

There has also been a lot of buzz about The Orphan Queen (The Orphan Queen, #1) by Jodi Meadows coming out March 10, 2015. Wilhelmina is a princess, a spy and a threat to her enemies as she tries to take back her kingdom. Wilhelmina and many other nobel chidlren were in hidding in Skyvale, Capital of the Indigo Kingdom. 

Magic has been outlawed for 10 years because it causes a toxic byproduct called wraith that poisons the land and animals. 

Wil knows that her magic can change the world. However a vigilante group called the Black Knife makes magic users disappear....  

Meadows first series is a trilogy consisting of Incarnate, Asunder and Infinite respectively.  Incarnate was Meadows' first novel. Incarnate is the tale of Ana, who is a new soul. It is not known why Ana was born a new soul. Yet people around her are afraid that she is a nosoul. A nosoul is a bad omen, therefore people are afraid and suspicious of her. Ana's adventures begin as she tries to uncover the truth about her birth. 

Vanishing Girls by Lauren Oliver comes out March 3, 2015. Vanishing Girls is the story of two sisters named Dara and Nick. The sisters are very close until an accident destroys Dara's face and leaves Nick unharmed. Not long after Dara disappear. Nick believes another disappearence is linked to Dara's and tries to piece together evidence to find her before is too late.