I have to admit, the thought behind it is good, but I just want to show you my logic
~Removing banner balance
A good idea, would keep the teams interesting and more or less fair. However it completely removes "Clans" and playing with friends if you cannot play together and are forced to be randomly sided with one team of the other and makes teamplay near impossible.
~Removing valor
Seems good, it seems to give it repeatedly to the few elite players who will be rather upset about this.
Also nerfs that moment when we all somehow manage to get it and can say "Man, I didn't do half bad".
~ Removing multipliers
Seems interesting, the current multipliers (While rewarding and makes us all play) can be rather unbalanced when one minute is worth 5 or more from another player.
However this would probably make the game a much bigger grind (We have a lot already don't we?)
~Heirloom removal
I can see what you mean, it can be a real pain to fight full loomed players and it can be unfair.
However most of us do have atleast a few looms, but still looms are the only way to upgrade and "customize" weaponry and equipment which makes you feel a little more powerful and lets us all play with our favorite gear.
(It also makes sense, such as older wealthier and more experienced knights have tempered and upgraded equipment)
Also this.
you have banner balance in strat as well.
as for the valour... well I think (or maybe rather know) that some/many players intentionally stay back and hide cus they know (its not like they are noobs they very well know this game and how to cope) it will be a round where they will lose. so they run and hide, hope to get enough points from straggler-kills to gain valour. 2-3 players can easily gain valour by doing this. the problem is just that I cant help thinking WHAT IF those players tried to help the rest of the team, getting a ton of kills before they die, resulting in a win? this is just a scenario I see on a daily basis almost once every single map