BSON as a next-gen scene file format.
BSON is the binary form of JSON-like document from mongoDB team.
BSON and JSON are simple and easy to use and modify through Python, C++, etc, thus I think BSON/JSON is a good candidate for a next-gen scene description format.
If you need to handle huge data, you could use C++ BSON binding for speed and storage.
Here’s example python script interacting scene data with BSON and JSON.
If I found BSON(and mongoDB combination) is really nice after more investigations, I might adopt it as a lucille’s scene file format.