Honestly, a variation of this would be nice but nothing to that drastic of a nerf, she is a midlaner primarily, and the ret of her kit is quite reliant on her balls to do stuff. I'd posit the ball duration to be 1-2 sec less if she doesnt hit a champion, therefore at max rank the q will be like the old q duration (6 seconds) if no enemy was hit. As it is only the 2 second increase on her q that would justify people saying her ult is broken but calling her weak before the mymu. With the changes i posited tho i'm quite sure she'd have a drop in winrate as her skill floor would be slightly increased. I do however think that Syndra is pretty much balanced rn.