Moonkin Form: This form now also reduces the damage the Druid takes while stunned by 15%.
A buff to Moonkin defense, pure and simple, and a welcome addition versus the wide array of stuns available to enemy players. As Ghostcrawler's mentioned previously, their main concern related to Balance PvP is survivability, and this is an improvement to precisely that.
Typhoon: The daze duration has been increased from 3 seconds to 6 seconds.
Between this and the increase to Typhoon's knockback distance (20 yards to equal Thunderstorm), Typhoon should be a more useful ability for both offensive and defensive purposes. The knockback distance was so small previously that the addition of a Daze effect seemed superfluous. We'll see how this does.