After reading several other people posting similar ideas I wanted to come up with a semi-comprehensive list of possible solutions to the Ashe problem:
•-Swap her Passive for her E alt. passive. (ie. Her passive scales at some interval, but her critical chance is scaled on lvl)
•-Allow the passive to increase until a critical strike is made (ie. Crit Chance grows by _% until a crit strike, then the crit chance starts at 0 again, increasing until the next crit strikes).
•-Give the Volley (W) a slight push-back effect, within the AoE. (The push-back range could be the complete distance of W or even as little as 1/3 W to be effective).
•-Make the Hawk-Shot (E - Activated) invisible to enemy team - OR - Make the direction of fire from E invisible but the splash remains visible to enemy team.
•-Move the E passive to Q (as passive) so the extra gold will only accumulate when Q isn't active. This may leave E open for an additional passive or a slight rework of it's own.
•-Scale the time on Hawk-Shot (E). Decreasing Cool-Down per level or Duration of Vision increase.
•-Change Hawk-Shot to an On-Hit Effect of Vision (ie. If you hit someone with Hawk-Shot, you are granted vision of that champion for X amount of time).
•-Add a small splash effect to Frost-Shot (Q).
•-Allow Volley to pass through enemy units -OR- Allow Volley to pass through a small number of enemy units (like 1-2 units with diminishing dmg effects).
•-Hawkshot, in addition to granting sight, does a small amount of damage in AoE
•-Hawkshot follows and grants sight of the nearest enemy champion for up to X seconds or Y distance
•-Passive: Apply frost every 3-5 hits depending on level (this will allow her to slow but not use all her mana in the process)
•-Passive: Every X hits Ashe does X% more dmg to her target (keep it low like 3 hits for 10% more dmg)
•-Have her passive increase her other abilities in some way. Like her hawkshot vision is slightly longer/wider, her slow is slightly stronger, or some other things to that effect
•-Swap the passive on E to her main passive and give a flat gold per kill scaled similar to tristanas range. then have her crit dmg scale with E so it's another dmg skill of sorts
•-Make it a flat increase to base crit rate instead of building over time (e.g. Ashe gains 5 / 9 / 13 / 17 / 21 / 25% bonus critical strike chance, based on level (1, 4, 7, 10, 13, 16).
These are the ideas that a bunch of people and I came up with, in my other thread about what exactly the changes should be.