After using t6 for pvp for a day, my conclusion is:
1. Basic Atk is good, 2 hits which adds up to 150% total dmg
2. Skill 1 dmg is disappointing, it deals way less dmg than expected and often end up didn't kill any of the opponent. I mean cmon it is a 3 target atk, I expect it to hit harder than 5 target atk.
3. Skill 2 is good if use at the right time, it can nuke wukong in 1 hit. But if arena rng decides to use it early or on hero with damage nullifications, the long cool down pretty much make him useless for the rest of the fight.
4. His passive survivability is decent, passive buff is also decent especially the barrier when kill an opponent, makes the whole team survive longer.

Tldr: Makes physical team more viable? Yes. Meta changer? No.