Forever changes
Victory Rush baseline; Recklessness/Retaliation/Shield Wall cooldowns separated; Thunder Clap usable in Defensive Stance; new talents incl. Spearing Strike (Arms), Bloodthrill, Improved Slam, Weaponmaster, Raging Blows, Precision, Focused Rage, Vitality, Vanguard; Bloodthirst nerf, Slam 15s CD; Protection talents largely require a shield. Benefits from combined hit/crit stats (Official).
Confidence note
Reported (single credible outlet, BlizzCon demo build; subject to beta change)