Confirmed Gameplay Features
Heat Gauge - Equivalent to Tension Gauge, broken into quarters on screen.
Barrier Gauge - Used to power your "Barrier", which is equivalent to Faultless Defense. Gradually regenerates after using.
Barrier Crush - When Barrier Gauge hits 0, it is temporarily disabled and you will take extra damage until it comes back.
Barrier Burst - Equivalent to Bursts. Knocks enemy away and reduces your Barrier Gauge to 0, but temporarily raises your attack. Done by pressing all 4 buttons, and can only be used once per round.
Distortion Drives - Overdrives/Super Moves, uses 50% Heat Gauge.
Drive Button - Allows each character to perform a special action specific to that character, and is very important to how that character plays.
Rapid Cancel - Equivalent to Roman Cancels. Takes 50% Heat Gauge and is preformed by pressing Weak+Med+Strong.
Counter Assault - Equivalent to Dead Angle. Takes 50% Heat Gauge and is preformed by pushing forward+Weak+Med while guarding.
Throw/Throw Break - Done by pressing (Backward/Forward +) Weak+Med.
-> All throws are comboable in BB, including 360s and supers (which should probably be fixed, at least for supers). All are more easily techable if they are comboed.
-> Throw breaks are easier than in GG.
Recovery - Just like recovery in GG, except you can also do a "roll recover" when knocked from the air to the ground.