Nope, J.K. Rowling official said she won't be writing anymore Harry Potter stories, so no Albus Severus books. She is however, planning on making a Harry Potter encyclopedia. And though she hasn't said she will, it's possible she might make more charity books at a later date (like the
Quidditch Through the Ages book).
Also, seven copies of
The Tales of Beedle the Bard by J.K. Rowling were released earlier this month. They're fairy tales from the wizarding world. Only seven copies were made. Six were gifts to friends and the last one is to be sold at a charity auction.
She also has said she's planning on continuing to write books, but not in the HP universe, and not for a few years.
But yes, it would be awesome if she did write more.
