Before getting started, I know Ashe is probably the champion with the most reworks on this site. It's probably why I'm getting my own take on her as well, I guess.
Right now, Ashe is defined by her Frost Shot permaslow, something that of course I feel the need to remove. The amount of CC she offers is high for an ADC, but her laning phase is very weak.
I have left her base stats mostly untouched apart from stat rounding. She has a lost good amount attack speed at level 1, and her damage is lower early, but scales better with levels so that her DPS from autoattacks at level 18 stays the same. Also she lost 50 range, but that point's for later.
The point of much of her stat changes. Focus becomes a rather strong steroid, emphasizing Ashe's character as an archer that strikes little, but strikes well. If Focus is left fully stacked, Ashe has range equal to that of Caitlyn, and about 15 bonus AD for one auto-attack, giving her threatening poke. But she is required not to move and any damage will reset it, giving counterplay to an otherwise oppressive ability.
Annie, the Dark Child
Ashe, the Frost Archer -made before her patch 5.9 rework-
Cho'Gath, the Terror of the Void
Graves, the Outlaw -made before his patch 5.22 marksman update-
Hecarim, the Shadow of War