Asajj Ventress
Who Is She: A native of the planet Dathomir who was trained as a Dark Jedi and became one of the Separatists best commanders. After failing to kill Count Dooku and being betrayed by Savage Opress, she deserted and became a bounty hunter, occasionally working for Boba Fett. Why We Think Shell Die: Ventress was shown escaping the Clone War at the end of the Clone Wars comic series but the show has already retconned her entire backstory so why not her ending. Shes also shown battling Jedi in the trailer which may be her undoing. Why We Dont Think Shell Die: Shes had the most development of any character in the show. Killing her off at least a year before the end would be doing her a disservice. Also, shes a resilient fighter who has the sense to avoid the war after leaving the Separatists. How We Think Shell Die: Either in battle against Darth Sidious, Count Dooku, or Savage Opress, or possibly defending one or more Jedi or a group of civilians after a gradual return to the Light Side.
Captain Rex
Who is He: Anakins subordinate officer. A reserved and hard-bitten soldier who values experience over everything else.
Why We Think Hell Die: Even though Clone Commanders have distinct personalities, theyre disposable. Various recurring Clone Troopers such as Echo and Waxer have been killed off, and its just an easy way to create some drama with a characters death without altering the show too much. Plus, Rex has to be dead or posted somewhere away from Anakin and Obi-Wan by the time the war is over to fit in with
Revenge Of The Sith.
Why We Dont Think Hell Die: Despite being kind of disposable, hes still one of the main four characters and it would be more consistent and make more sense to keep him alive until closer to the shows end when killing him or getting rid of him is absolutely necessary. Plus, hed just get replaced with another Clone Commander to serve under Anakin whod also have to be out of the way by the end of the Clone War.
How We Think Hell Die: Hes too important to die in some random firefight. Its got be death by a major villain or heroic sacrifice for Rex. Alternatively, tying into one of my theories about how Ahsoka might die, I think he may receive Order 66 and try to kill Ahsoka but will instead be killed by her.