StarCraft II: Legacy of the Void/New Terran units

Liberator
Anti air flyer that can turn into an anti-ground defense turret. Mostly effective against large numbers of enemy air units such as Mutalisks, Phoenixes and vikings but not big air units like battlecruisers.

Cyclone
New ground unit that can lock onto enemy targets and move while firing. Effective against slow expensive targets like Thors, Ultralisks, Immortals etc. but vulnerable to fast moving targets like Mutalisks.

Battlecruiser
Can now teleport anywhere even to places that are not revealed to the player.