The fifth TNG movie that never was

Spiner himself explained,...

https://memory-alpha.fandom.com/wiki/Undeveloped_Star_Trek_projects#Nemesis_follow-up

Undeveloped Star Trek projects

Many projects have been partially developed for Star Trek, beginning in the 1970s. There have also been deleted scenes for completed projects. The God Thing (1975) Star Trek: Planet of the Titans (1976-1977) Star Trek III (1980) Star Trek: The First Adventure (1989) Star Trek: IMAX (1997) Star Trek: The Beginning (2005) Star Trek 4 (alternate reality) (2019) The notion of a Star Trek film was originally considered amid the making of TOS Season 2, while DeForest Kelley, Gene Roddenberry, and Greg

Memory Alpha
God, this pitch makes so little sense on so many levels. Star Trek has never been about the villains, so having a batman-style villain team-up makes no sense. Seven samurai in space with time travel is a reasonable pitch, but why would you need to build a team that involves a captain, a captain, a science officer, and a captain?