"The Last Jedi, Sorta" Edit: or "The Current Last Jedi" since Yoda was "the last Jedi" in episode 5...
Technically yoda is still the last jedi since both obi-wan and yoda were training luke to be a weapon against the empire not to be a jedi.
There's no god damn rule stating this. It's the last fucking Jedi so deal with it. There! Have it changed to The Last Fucking Jedi.
Well then "The Last Rebel Weapon". Or maybe "The Last Non Jedi". Though that would be just a movie with Mark Hamill wandering around, being the last person in the universe. And he slowly goes insane from the lack of social interaction. And becomes the fucking Joker! It's actually a Joker origin story! Yeah, I'd watch that. And I have no issues with the amount of words in the title. As long as it's good they could call it "Star Wars: Episode VIII" for all I care.
The Lust Jedi? Not if you're Jar Jar. (I think he said Jedis at some point. Refuse to watch that shitshow again to see if I'm right)