Most important thing missing from the Azir rework
Is a radius showing him how far away his Sand Soldiers can keep attacking before being deactivated.
A range indicator for his W in a similar matter to Twitch's E would smooth out a lot of Azir's learning curve and make him a much more reliable champion. This will be especially important now that the range of his soldier's activation has just been reduced with his rework, meaning that knowing his range and limits of his soldiers will be more important than ever.
I know that playing Azir for more than a handful of games will give you a general sense of how large the radius is, but something like this would help smooth out his gameplay and make playing Azir feel a lot better.