While prepping for Star Wars Episode XIX I've looked through art books and sites, read comics, and watched fan films. The latter are particularly interesting to me because I have some experience with guerrilla short filmmaking. The main result of this binge, however, is that I want to avoid too much stuff featuring Serious People With Lightsabers.
SPWL seems to be the largest single genre of Star Wars fan film, after "lightsaber fight with or without a plot introducing it", characterised by still having lightsaber fights, but also a fair bit of dialogue from people in robes discussing the nature of the Force, and little or no evidence that anyone involved has a sense of humour.
Sure, it models the last actual movie fairly accurately, but still...
I actually put a few bucks into a "lightsaber fight with or without a plot introducing it" fan film, Ryan Vs Dorkman 2, because it was a sequel to one that (a) was a really cool lightsaber fight with a lot of inventive ideas and moves and (b) had jokes.
If I were to write a Star Wars fan film, as I basically am in scribbled-actual-play-notes form, I'd want different kinds of action, a mix of heroic and villainous types, and I would definitely want some laughs.