The way things are it looks as if when revived you are back at full health and fighting capacity, that seems a bit unbalanced and unrealistic to me. I believe it would be a lot cooler that once you'd be revived you'd only have aboutt 30% of your health and only be able to use your dagger as a weapon because you're too wounded to fight. Also, you would be hunched over and holding your chest with your left arm just so others know you are wounded.(A bit like L4D, where when you are revived you have to ALSO use a medkit to regain HP)
that way friendly players will be like:
"Hey that guy got recently revived, I should heal him."
And enemies would be like:
"Hey that guy got recently revived, I should finish him off for once and for good."
And once you're bandaged by a teammate you should only have about 50-60% of your HP(The rest you should have to regenerate in a nice quiet place), or else large group fights could go on forever and ever.
Image this scenario:
2v2, one guy from both sides go down, instead of fighting the remaining two decide to quickly help their wounded allies to their feet. Of course they won't have time to bandage their wounded comrades because there's a battle going on, the two guys who're healthy fight each other while the half-dead knights attack each other with shanks.
Also I believe when someone is knocked into the ground / killed they should be ragdolled at first, because it would be just silly to be fighting an enemy on castle walls and instead of having his ragdoll body falling down the castle he'd just float in the sky above the ledge. (GTA and Max Payne 3 are good examples of this, when you are heavily damaged or you are hit by an explosion you'll fly around like a ragdoll but eventually morph into the lying down pose)