Well since they are standalone films I actually would probably enjoy a movie that explores something different in the Star Wars universe. New characters with new problems of their own...
standalone films would most likely be origin stories, with everyone from Yoda, Boba Fett, to Han Solo thrown around as possible candidates
BLOODY HELL!
Is creativity dead? Has the word original fallen from the dictionary.
One of the biggest problems with the Star Wars universe is that it isn't a universe, it's a cattle shed. crammed with a dozen people, and a dozen planets, and absolutely every plot, theme and development just alternates focus between these 2 dozen points.
The great thing about these characters is the mystery of what drives them. Knowing Yoda's intimate family and racial history will not make him more awesome. In fact it will achieve the opposite. Yoda in the original trilogy is a mysterious master of the force: An old hermit that possesses an ancient source of power.
We aren't supposed to know his history. We aren't supposed to examine Yoda filling out his spaceship tax forms and taking watery dumps in a cantina refuse pit after some bad Corellian cocktails gave him the runs after he went on a bender because his Twi'lek girlfriend split up with him.
Knowing the method behind the Magician's trick ruins the suspense and intrigue of the 'magic'. Knowing the history and psychology of the mysterious hermit ruins the mystic character of the teacher and the feeling of otherworldly power he holds.
To put it another way, The Emperor using a lightening attack in the third movie was frightening, unexpected, and gave the impression that
here was a being so powerful in the force he could manipulate reality to achieve anything. Take a cursory glance at any depiction of dark jedi in current media, and they are more lightening focused than an electric pokemon. At least Pikachu learned tackle, My Old Republic Sith Sorcerer knows 10 different ways to make lightening fly out his ass, but woe betide asking the force to create any other element or effect.
I'm just reaching my wits end at hoping Star Wars will ever do a large budget release of something that actually expands on the universe, rather than photocopying the old content and changing a few verbs.