Some potentially good things, some potentially bad things. Some of the concerning ones:
- Stamina tends to lower the skill ceiling. Sprinting is good, however, and having a stamina system tied only to sprinting wouldn't be a very contentious decision.
- Auto-blocking if you have the right stance selected. If it takes more time to switch to a stance and attack than it does to attack in Warband, then it's going to make anything that isn't a duel very annoying. It might even make duels annoying, prolonging them needlessly by making the first attacks very easy to block until you've depleted your opponent's stamina.
- Stances. Sounds like they're going to lower the skill ceiling when it comes to anything but duels, again. One of the best things about M&B is that you can fight multiple opponents if you're good enough -- there is a definite advantage to having the numbers on your side, but numbers don't equal victory by default.
So it sounds pretty good for one-on-one fights, but extremely limiting when it comes to fighting more than one guy, alone or not. Having melee combat be very lethal where it's possible to die in two, maybe even one in some circumstances, blow(s) makes it more exciting and rewarding. I've heard the argument before that it may not be thought of as fun for people new to the game, but I'd disagree.
One, high lethality combat makes it possible for newbs to kill experienced players without adding any lame gimmicks or artificial limiting factors, everyone makes a mistake eventually. Two, it's just more exciting when you know you might be one hit away from death, if you know you can take 2-3 more you're not as concerned. Being concerned when in reach of sharp, pointy objects is good. Three, makes it more rewarding not just for the skilled player who managed to pull off a flashy instant kill, but for the newer player, who goes from dying instantly to the experienced guy to surviving three exchanges, then four, then five, then six, and so on. I don't think anything should be given away for free, least of all blocks. Although there's a chance it's the equivalent of someone holding RMB in a random direction in cRPG, then that's fine, but it kind of sounded like something else. Many skill-based games have been ruined precisely because of the "let's give the newbs a helping hand against the good players" school of thought. And the most successful skill-based games are those where such gimmicks don't exist.
Sorry for the double post, but I really wanted to mention something. In medieval warfare, it's impossible to take on more than 3 or so people by yourself, they would easily overpower you. It's not Hollywood where someone singlehandedly defeats an army. Of course having teammates to help you out is the main idea. I think this new combat system is much more realistic than some other medieval games.
And this is simply not true. Not only does it defy common sense, but there are tons of accounts of people taking on "more than 3 or so people" by themselves.