That's almost exactly what I've been wanting, but with Obi-Wan being hunted by cyborg Maul. The perspective would switch between those two characters, Maul hunting and Obi-Wan escaping/surviving out in the vast, isolated deserts. It'd be very serious, and there would be very little dialogue.
I kind of think of it as like the predator hunting Dutch or terminator hunting Sarah, but with the atmosphere of an old Clint Eastwood western revenge-type film. I'm thinking Obi-Wan gets wounded early on or something and has to retreat through the desert to regain his health.
Man, Ewan and Ray Park back as Obi-Wan and Maul. That would be incredible.