We (Addisu, Steve, and myself) are doing some more development on SDFormat as part of a project funded through my employer, Toyota Research Institute.
At this point, we’re targeting SDFormat 1.8 / sdformat11 for early December, to then be incorporated in the next version of Gazebo in the Ignition ecosystem (the “E” release), and future releases of Drake.
For more information, please see our current “epic” for tracking progress:
The proposal itself is here, but is still being refined: