James Gunn and Peter Safran have taken over DC and are rebooting the whole cinematic universe. That said, when they came in some flicks were wrapping and needed to come out. For example, the Shazam sequel had a rough first weekend...and a generally drab theatrical run. This has reduced movie such as, "Aquaman and the Lost Kingdom," to being afterthoughts. The first, "Aquaman," was by all accounts a fun time and reviews for the sequel have found it anywhere from really bad to slightly decent to quite good, but it doesn't matter anymore.
This version of the DC Universe as we know it is done, stick a fork in it. Jason Momoa may be back as a whole new character (the Lobo rumors won't stop) but this iteration of Aquaman is finished. Minimal promotion has been done for the movie compared to other superhero blockbusters and it isn't even getting a red carpet premiere. It is the end of an era for DC's movies and they're ending with a bit of a quiet whimper. Whether this will do okay and skate by financially on the charm of Momoa or end up bombing like, "The Flash," remains to be seen. The DC Cinematic Universe is dead, long live the new DC Cinematic Universe.