It has been announced that the new Pynchon book will be called Against the Day.
In unrelated news, here are my upcoming (??) book titles:
A Detachment From Everything
A New American Bestiary
Bone Oil
Boys with Sticks
Nude Descending Freeway
Still Life with Car Crash
Tools for Teething
To Conclude My Opening Remarks
Tumbleweed
There, copyrighted!