The Overwatch PTR has gotten a massive update. Along with the changes to Hanzo. So, lets gets started. 

• Storm Bow
  • Projectile speed increased from 85 to 100
• Sonic Arrow
  • Cooldown decreased from 20 seconds to 12 seconds
  • Duration decreased from 10 seconds to 6 seconds
  • Radius decreased from 10 meters to 7 meters
• New Abilities
  • Lunge
    • Press jump while in the air to leap horizontally
  • Storm Arrows
    • Replaces his existing Scatter Arrow ability
    • Hanzo can now rapidly fire up to 6 arrows that deal reduced damage but are always fired at full power

Developer Comments: The goal of these Hanzo changes is to allow him to have new options and maintain his high damage output, while removing the frustration of fighting against the old Scatter Arrow. Hanzo is now much more mobile with his new Lunge ability, and with the combination of the bow projectile speed increase and the new Storm Arrows ability he can now deal his high damage more consistently than ever before.

Deflect

• Hitbox size has been reduced

Developer Comments: The hitbox on Genji’s Deflect was big enough that it would sometimes reflect projectiles that were pretty far away from him. We’ve tightened up the hitbox, which should solve this problem while still fully protecting him from projectiles that would hit him from the front.

Junkrat

• Frag Launcher
  • Projectile size decreased from 0.3 to 0.2
• RIP-Tire
  • Tire movement speed decreased from 13 to 12

Developer Comments: These changes are aimed at lowering some of the most frustrating parts about playing against Junkrat. Decreasing the Frag Launcher’s projectile size means he will have to aim a bit more carefully to land powerful direct hits and slowing the RIP-Tire’s movement speed gives his opponents slightly more time to destroy it before it detonates.

Tracer

• Pulse Bomb
  • Max damage decreased from 400 to 300

Developer Comments: Pulse Bomb was too good at killing tanks, who can be easy to stick due to their size. This damage reduction makes it less powerful as a tank-destroyer, while keeping it lethal against most other heroes.

Lúcio

• Wall Ride
  • Wall riding is less likely to be interrupted along a single surface
  • Can now go around corners (both outside corners, and inside corners) without having to leave the wall
  • Can now land back on the same wall after leaping away, provided his leap takes him far enough away from the original jumping off point.
• Soundwave
  • No longer consumes ammo

Developer Comments: Wall Ride has been significantly overhauled to allow it to function more smoothly across more areas of every map. Lúcio players should instantly notice a huge improvement in where and how Wall Ride can be used. In addition, Sonic Amplifier’s Soundwave ability was unnecessarily controlled by both a cooldown and an ammo cost, so we’re removing the ammo cost.

New Escort Map: Rialto

• Rialto was home to Talon agent Antonio Bartalotti’s sprawling estate and the backdrop to the infamous “Venice Incident,” a turning point for Overwatch and Talon. The Italian government has taken great steps to preserve Venice, and the results are striking. Tourists visiting this picturesque town can sample the regional cuisine, enjoy a relaxing gondola ride, visit Galleria D’arte Omnica, or simply take in the sights with a stroll along the canal.

Thats its. Big changes to some fan favorites and the new map looks awesome. 

*edit* It also appears that Horizon Lunar Colony has also received a change. Here is a video of the changes.

This has been James with with Game Fix. Game on everybody!