Tor.com dropped a bomb quite subtly in the last paragraph of their Three Moments of an Explosion review. It turns out This Census Taker won’t be Miéville’s only work released next year. There’s also a whole other novel, called The Last Days of New Paris!
I did some googling and I found a Chinese literary agency with further details:
THE LAST DAYS OF NEW PARIS is an intense and gripping tale set in an alternative universe: June 1940 following Paris’ fall to the Germans, the villa of Air-Bel in Marsailles, is filled with Trotskyists, anti-fascists, exiled artists, and surrealists. One Air-Bel dissident decides the best way to fight the Nazis is to construct a surrealist bomb. When the bomb is accidentally detonated, surrealist Cataclysm sweeps Paris and transforms it according to a violent, weaponized dream logic.
Wow. We really are blessed with so much new material in such a short time! I’ll update when other details are known.
UPDATE: Check out a new, longer description here!