Paramount has stated that this not a continuation of Part II, but more of a spin-off.
Jeff Nichols was originally set to direct but was pulled out of the project because of another Paramount sci-fi project.
One block of Churchill St in Canary Wharf, London substituted as NYC for a scene. A number of heavily damaged cars with New York, Connecticut and Florida license plates, along with piles of concrete and metal debris were strewn along the block.