Animation studio Khara has announced the forthcoming release of Shin Ultraman, from Hideaki Anno, the man behind Shin Godzilla. Not much has been announced of the projects details other than it seem like it will begin production after Anno completes work on Evangelion: 3.0+1.0. It seems the project was being worked on in February, and will also be a collaboration between Toho and Tsuburaya.  Press release below.

RELEASE NEWS - A NEW FILM "SHIN ULTRAMAN" 
Tokyo, August 1St 2019 -. A New Film Production Of "SHIN ULTRAMAN" Was Publicly Announced Today The New Movie Will Come To Theaters In 2021. 
Hideaki Anno Will Join A Film Team, Higuchi- First draft script has been completed in February 5th, 2019. Anno will fully join the project after finishing his “EVANGELION: 3.0 + 1.0” film.

Presented by: Tsuburaya Productions Co., Ltd. 
Toho Co., Ltd. 
Khara, Inc. 
Distributed by: Toho Co., Ltd. 
Release: 2021 
 
Toho Co., Ltd. Will take care of public communications.

From Tsuburaya
For over half a century, Ultraman has been loved by fans all around the world.
We are proud to announce the production of SHIN ULTRAMAN, which will be a movie adaption of the original ULTRAMAN (1966) – the legendary series that started it all!
Details of “SHIN ULTRAMAN”
Produced & Screenplay by: Hideaki Anno
Directed by: Shinji Higuchi
Starring: Takumi Saito, Masami Nagasawa, Hidetoshi Nishijima
Presented by: Tsuburaya Productions Co., Ltd.
Toho Co., Ltd.
khara, Inc.
Distributed by: Toho Co., Ltd
Produced Companies: Toho Pictures
Cine Bazar
Release Information:  To be released in 2021, by Toho Co., Ltd.