Well, maybe not a direct change to the map, but one to the players. I know its impossible to let them actually change it. People are stupid, we all know that.
To stop kiting on a far open map, teamplay is the key. there is only 1 kind of teamplay on those maps tho:
- a shieldwall, people hide behind those, that is fine, that is good. but shieldwalls are either camping or theyre moving at the wrong time or even stupidly, so following guy without spears or shields are picked up by enemy cav (IF the cav survived, as they often have their own battle at the beginning on a map).
to stop kiting, there is cav needed that survives till the end, most are often just riskly charging and also blind.
Cav becomes a problem, once there is like a third - half cav in one team, and the other team has like no cavalry. then its a one sided match, but otherwise most open maps are alright.