Doomfist's Seismic Slam and Meteor Strike have also seen some significant changes.
All maps and modes will be playable, with progress transferring over to the full game.
Those who purchase the remaster receive classic Warcraft 3 and its expansion next month.
Buffs for Mercy, Reaper, Symmetra, and Roadhog are also live.
Ashe is no longer accessible for PC players with the PTR build.
It'll be more of a "pre-alpha" though, according to Blizzard's Pete Stilwell.
Blizzard confirms that it will improve load times and optimize memory on "constrained systems".
Lead artist Brian Sousa says the team isn't "looking to change how Warcraft plays".
"Blizzard severely miscalculated how their fans would respond," said Cowen and Company to investors.
PC players can try out the 29th hero before she's available on live servers.
Blizzard denies pulling any announcements or having any plans for the same.
Blizzard is "constantly in discussions" with first-parties like Sony and Microsoft.
The game "would not allow you" to play without an internet connection, according to Blizzard's Wyatt Cheng.
Expect "more mobile titles" that span "all of our IPs", says Blizzard's Allen Adham.
Control scheme "taking inspiration" from NetEase's other titles, says Blizzard's Allen Adham.
Co-founder Allen Adham reaffirms that "multiple things" are in development.
Blizzard doesn't want to "break" multiplayer, but would also "like to see some changes."
The outlaw utilizes a lever-action rifle and can summon B.O.B, her Omnic bodyguard, to fight.
Set between Diablo 2 and 3, this mobile offshoot is developed by NetEase.
McCree meets the newest playable hero, along with a mysterious entity.
