It's more complex.

Origin: 1) I wouldn't be surprised if some of us have already played 5 longer than any one person in dev did. Completely irrelevant regarding what I said: 1) People haven't been playing the game for 10 years, despite the cliché. They were playing DMC with a bunch of breaks, playing other games, and only a few really play since 10 years. Because you said that play-time surpasses development time, implying that it took much longer to burn-out DMC4. This doesn't deny the obvious: if you have been testing mechanics over and over for 1 - 2 years, the way you would enjoy a fresh new perfect DMC6 would be significantly different. Even if you are not completely burned-out. And it's worse if you have played: 3, 4 and 5, and there are similar mechanics (but with improvements). Psychobiologically it simply can't be as rewarding. ...by the time the final product is released, there would be a burn-out... With a burn-out I didn't mean we wouldn...

First of all, there will be SPOILERS.  This is meant for people who have played already the game or are very sure they won't play it and still would like to hear my impressions. If you plan to enjoy Sekiro experimenting and learning yourself, without any hints or spoilers regarding bosses/enemies, the system itself... I recommend you to stop reading. System (general and main mechanics): This game offers a new approach compared to past souls games, with the new posture gauge and focus on 4 types of reactions: dash , deflect (normal parry) , Mikiri  (special parry for mainly thrust and charge attacks) and jumping -> aerial kick (more optional). At the beginning the game tells you that enemies will regenerate their posture gauge very quickly if they have a lot of health. Naturally one could think that it's a good idea to go first for direct damage on the health bar, dodging - hitting, before attempting to break the posture of the boss/mini boss (and even harder normal ...