Just saw this listed on IMDB: http://www.imdb.com/title/tt4497238/combined

I love the original which was directed by Umberto Lenzi. Fun Italian zombie gorefest.

So far, rumored to appear in it: Ray Wise, Noah Hathaway, Tony Todd, Judith O'Dea (Barbara from the original Night Of the Living Dead). It'd be cool if the star of the original Hugo Stiglitz did a cameo.

The IMDB page for Nightmare City (remake) was last updated August 2017, but according to its Indiegogo page filming is set to begin this year.
https://www.indiegogo.com/projects/tom-savini-umberto-lenzi-present-nightmare-city-zombies-horror#/

But with Umberto Lenzi's passing, this may or may not stall when the film goes into production as Umberto was one of the remake's producers.