Maybe there should be an update to why Varus doesn't wear pants? I joke, I joke, I remember reading why he doesn't wear pants from the ScribbleKid.
I'm personally not sure which lores need to be updated. If anything, for champs in general, I kind of want the lore team to be on the up and up about their reason for joining the League. Fiora is a good example. Her father was disgraced,and now she wants to stab people in their face. The update gives her a much better reason for joining the League and gives her more personality, more pompous arrogance. So I love that!
And in terms of relationships and so forth, I don't mean to push anything onto the table, but maybe you guys should take a look at the fanfiction forum. I mean, a bunch of us, and a bunch of talented writers, try making champion relationships. From love to friendship to the overall development of a character, so if you want to have an idea of what people think and have the time to read stories, I'd recommend checking out the fanfiction forum. Not sure if many reds read them, truth be told.
Anyhoo, keep up the good work, and know that I'll always be a supporter for LoL lore!