I am well aware that the ult change has hit live, however I also know of the possible rollback of this change.
What I was thinking that instead of the 1 second, giving zed an scaling range on his ult so it would look like.
Range: 1100 (twice w)/ 1650 (3 times w)/ 2750 (5 times w)
This keeps Zed's mechanics intact, but means that he has to be careful not to stray too far from his ult. This allows a well timed displacement spell to pull him away from his ult.
Just a thought :) Feedback is welcome