I think you mean what you already mentioned in some other post. That the plan is that "all" the closest lightprobes will be "combined" (interpolation or something) in the future, but currently only the closest is used.
Maybe related - I am thinking on some algorithm for automatically placing the probes in a scene. Reason behind this is that I have a dynamic scene so manually placing the probes will result to strange lightning behaviour in some areas. I thought about using a navmesh to get all the possible player positions, then calculate the environment maps for all of them (or with some distance vector) and then remove the ones that have the least differences between its neighbours until some pre-defined amount of probes is reached. Do you think this might work?