I do really hope they don't do QTE david cage style, they are stupidly bad:
First of all most of the QTEs he does takes a percentage to succeed, meaning most of the sequences have quite a lot of commands (let's say 10 and you succed by pressing 7), so the wrong moves you do don't have that instantaneous repercussion as Shenmue QTEs had. Shenmue QTEs are often called "one of the few games that did them good" because of the arcadey nature of them, the good mapping of them to the controls and moves we already know and that they have cinematic weight. All of those strong points get buried when you try to do a big sequence of QTEs like cage does. The only interesting thing is how he maps the prompts on the screen, but it takes away to the cinematic approach Shenmue had. To me David Cage is one of the hackiest designers out there.
Thinking about the skill tree. Maybe we get something more similar to Yakuza ? That we might have bajiquan/jujitsu/other style and we can get more moves for each style that we can switch ?? Or maybe it's divided like the original in grabs/puches/kicks ?? I would prefer the second one, if we maintain the input move similar to the originals, but if we go with something more arkham the yakuza style might fit better.