I don't think it'll change much from DOA5, it's basically just DOA with no CB and a somewhat less stun oriented game. Plus damage is higher and I think with fatal rushes being highs and the meter, it'll definitely make some characters alot more viable this time around
It seems to be gravitating towards stun-launch (quick launching). You can still perform resets if you want, but DOA6 is looking to lower the emphasis on the stun game and encouraging a stronger focus on neutral.
So far from what I watched, I think it varies by character (and also the player). I think so far Rig is definitely more on rushdown, continue pressure, utilizing stun system, benefitting from environment and at times launching after 7p at least from what I saw w/ Jager and a rig at TGS.