Guild Wars 2

Have anyone thinked on any completely new mechanic that could be added to the game, to fight?
By mechanic I mean – existing dodge and jump.

We could have:
*crouch/bunker – non aoe dmg have 33% to miss, we cannot attack.
*kick/punch – independently of normal attacks we can have additional attacks which are weak but fast and may have additional effects on them like stamina drain or small knockback.

nah the combat system is good in my opinion that would ruin the game