Random Thought: What if Kalista's Autos/Qs did bonus damage when she leaped forward
BUT, deals less damage if she were to leap backwards?
Think of it. There's now a lot of incentive to leap forward, but if done improperly, it immediately puts her within arms reach of most champions and puts her in immediate danger (which is huge for her usually glass cannon build). There's now much more gravity in Kalista's short term vs long term strategic thinking: Do I do more damage now, capitalizing on short term advantage (more damage in this attack) but putting extreme risk on my long term advantage (way easier to get caught and die)?
If combined with a way to diminish her power (in this case, doing less damage when jumping backwards) so it isn't just a straight buff to her in many situations, I think it would add a whole lot more strategic depth towards how Kalista fights and how to fight Kalista.

no
does she have more burst then
no
does she have more range then
no
yes, she does pay for her mobility, enough? probably not, but she does pay