It occurs to me that the map design may prevent Larian from increasing the radius of the combat bubble. Quite a few zones have distinct encounters seperated by a couple dozen feet. It could be that tweaking the combat bubble system would create a chain reaction, merging every encounter in an area.
What harm? It can quickly turn into unique experience. In my recent solo playthrough the crypt bandits followed me to the Lae'zel cage and she even had special dialogue about releasing her mid-fight.
