Prefabs for Blender

I'm a level designer & indie developer with 6 years of experience and I've seen many different ways of how studios handle environment art for levels. One particular way I loved the most and that was a custom prefab system similar to Unity, but for art assets in Maya. I think that would be cool to have in Bender too.

In that system artist could create a prefab that is kinda similar to how it currently works in blender with linking, but it also possible to create prefab from prefabs and that was the most useful feature ever. For example artist could create kit with lamps for example, and the use that kit to create kit with different houses which were using these lamps. And each time lamps kit was updated it automatically was updated in every scene in which lamps from that kit were used. It was very handful and some sort of system like that in blender would be great imo.