I don't even know if something like this is possible but I think it would be super neat. I wonder if map makers or devs could add booby traps to maps? Make it obvious that the spot is booby trapped and if you walk on it with a horse or you yourself walk on it spikes can shoot out of the ground or a tripped wire will send an arrow your direction. Obviously some of these traps would cause damage but I wouldn't be opposed to some of the traps actually killing you if you aren't paying attention and trip a wire or walk on a pile of loose dirt / leaves / grass and fall to your death. It really would add a new level of excitement to every map making people extra cautious and perhaps adding levels of tactics while people try to lure less suspecting people into a trap. The only thing I would want to be sure of is the traps being rotated so they aren't in the same place every map because eventually people will memorize these things.
If this isn't possible please add a map that is super high above lava and the ground looks like swiss cheese challenging true masters of footwork to perform well. I just feel it would add a fun element.