The HUCAST website links to a Twitter account under the name “Fresh Dux” which tweets that Dux 1.5 has been in development since July 2011.
In May 2012, a Kickstarter project for a remake of the game was announced. It was called Redux: Dark Matters and scheduled for a release on PSN, XBLA, Steam and iOS, as well as the Dreamcast. The latter version was originally available only as a Kickstarter reward but Redux 1.1 was later sold separately. The project reached its funding goal of $25,000 on 14 May 2012, after only a few days. The Dreamcast version was released on January 27, 2014.
Art assets from the Dux series were used in NG.Dev.Team shm’up Razion.