This is probably me just hoping really really hard, but I've seen some BK combos, and is there any word on the health gain changing? Like, for the better? I saw a Ragna start a combo with full health, and by the time he ended it (in 22C), he had full health again.
Then again, I wasn't a very avid user of BK until recently, so I have no idea how it's health gain fared this time around.