1) The battle-win snowball effect - If one team wins, it makes it easier to keep winning as the losing team ends up breaking armor/weapons and fighting naked (exaggerating just a bit). IF you get on the losing team it actually makes more sense to switch out of your good gear, thereby giving your team LESS chance of winning as everyone switches to low upkeep gear.
2) Archery seems to have been over nerfed. Losing both accuracy and damage (and higher PD bows) may have been overkill and may work better as one or the other (I'd rather have accuracy than damage).
3) Leave-game penalties - between the kick bug and some of us only playing for 15 minutes at a time between other responsibilities (kids!) it seems very harsh to penalize someone who has to step away from the game. I understand trying to keep people from quitting if they are going to lose (especially with the new upkeep system) but it makes me decide not to play at all if i cant dedicate a lot of time in a night. If i want a quick game, i have to find something else.
4) Horse trample - i like the idea of team damage, but perhaps horses should only trample at high speed. This would be more realisitc anyway, as while a horse moving slowly can definitely push you out of the way (or step on a toe!) it is unlikely to "damage" you without a bit of momentum behind it.
5) Non-strategus disadvantage - it seems like this patch heavily favors strategus players. I havent tried strategus and like CRPG for the persistant characters, but the upkeep systems seems based on people obtaining money from strategus to be able to afford CRPG and not the othr way around. Having not played strategus i may be wrong in this and just perceiving it based off of the short time since the patch launched.