I would like to see something new here too, there are countless examples of situations wherein after you killed someone you're forced to stay next to his body, not only when camping some lucrative townhouse behind enemy lines but also in legit situations, like when capping flags outnumbered or defending a place without the option to just sneak away. if a foe can see you place a mine and/or take up the most advantageous position while waiting for your deceased enemy's sure return or something like that your incapacitated foe sees you do such things. He spawns and instead of going the more logical way he'll know how to respond to your situation.
True, this will mostly effect just one or two guys, a squad at most (depending on the squadleader's behaviour), but such things can be reported back to others, sometimes before the time it takes for someone to spawn and return to the place. Thus in some situations, when you've killed someone in a position nobody suspected someone you can't be sneaky anymore. With a different system, a fellow who's dispatched silently might just do so without anyone else of his team knowing, give or take a few fellows with excellent situational awareness, luck or the random guy who just watches your arrow disappear on the minimap. In this situation, all one could do is report a general location of your sneaky attacker, but in the current situation you can even see him move in your body's vicinity untill you respawn. You can spot if he seems intent on staying or leaving, if he sets up mines, if he's got a sniper rifle or a machinegun besides that pistol, if he's with friends or alone, etc.
Sure, most people will just see a tank far away on a sanddune, or next to bocage, or more artyshells coming down, or some guy moving on in the distance, but I do suggest change in this specific effect for the few (or more often, depending on your playingstyle) situations in which it does make a difference.