It's actually really nice to see Azir getting some kit changes.
I haven't seen an Azir in midlane for the longest time and while laning against a good Azir may be annoying, it provided a newer experience compared to facing Ahri, Zed, Yasuo or Talon every game.
They're some really interesting changes too.
W - Arise - Updated Passive "Azir gains 20% attack speed. When Azir has 3 or more sand soldiers active, he gains another 20% attack speed for 5 seconds." It also seems like sand soldiers last 1 second more.
E - Shifting Sands - New Addition to the ability "If Azir hits an enemy champion. he halts his dash and instantly prepares a new sand soldier."
There might be more as Surrender@20 gets updated throughout the week. But these are the clearest changes so far.