Luicfer TPB

Is there a book 5 in the pipeline? I have read book 1 & 2 a few months back
and just recently purchased 3 & 4. The problem is, I 've read so much since
then and have to keep my copy of book 2 next to me to keep refering too. So
is 5 gonna be out anytime soon while all the info is still fresh in my
brain.