How about, click on a clickable location and then it sort of zooms in, with some pictures of the region, a short description of what it's like, and some history, plus any champions. Perhaps even small sketch-like images of champions interacting with the environment? (J4 giving a speech, LB and Swain plotting in privacy, etc) And a map that'd show the region in even more detail (Shadow Isles map that shows where the TT is, for ex.)
So, essentially a Region Page for all the pieces of text on the map, showing;
- More detailed map
- Pictures
- Short description
- History
- Associated champions
Yes, even for Urtistan, the Fyrone Flats, Kumungu, the Plague Jungles, the Ironspike Mountains and all the other places from which no/few champions hail. The regions have histories, there are stories to be told, Ezreal's probably been there, and perhaps the lore team would become inspired enough to pitch a champion lore for a local.