Demacian Lore Update?

I would really like know more lore for some of the Demacian champions. Or to be specific, the ones who still have unanswered questions. The champions like Shyvana, Galio, Kayle, and Jarvan are still shrouded in a little mystery.

Since Poppy's lore has been changed, Galio would need a new lore to explain how he came to be and why he watches over Demacia. Poppy was the reason why Galio decided to continue on after his master died. He would need a new motivation to guard Demacia.

And after the Institute of War and the Summoners were reckoned out of the lore, Kayle (as well as Morgana) would need a new backstory telling where they came from. Originally, Kayle and Morgana came from another world, and summoned to Rune Terra to fight in the League. But now, they have no explanation as to how or why they came to Rune Terra. And they would also need to go more in depth as to why the two sisters are fighting.

Shyvana's past has kinda been explained to us already, but it would be a good oppurtunity to expand on it. We could learn of Shyvana's mother and her fate (assuming she has died) and how exactly Shyvana was treated when she was young. They could also go into detail how Shyvana slew her father's killer. We can also how she obtained her armor and gauntlets.

Jarvan was traumatized after a defeat to Swain, as well as the twelve other men who survived. The writers could tell us what exactly they saw. Once they returned to Demacia, Jarvan gathered the twelve men and set off for an expedition where they would travel all of Valoran, searching for self enlightenment, where they would return two years later without any word being sent back to Demacia. We could learn what took part in this time period, as well as how exactly Shyvana met the prince. More detail can be added to the fight against the dragon too.