Hey Riot? Rumble, Shaco and Gnar?

Hey, I really do love the universe; especially with the constant history reveals of Vastaya.

However, there's two champions I wanna learn more about than their current lore shows; those being Rumble and Shaco.

Along with this, will we ever get anything uncovered in Ezreal's travels or family travels revealing more of what Gnar used to be like?