[sitkack]

They would have to 100% open this up and give it to standards bodies, otherwise it isn't a standard. The conformity tests and testing equipment designs and protocols should be freely available.

[duskwuff]

For that matter: who's going to be manufacturing and supplying these connectors? Tesla? I don't think so.

[themaninthedark]

Generally a connector manufacturer would make these, Amphenol, Aptiv (formerly Delphi), Cinch, JAE, JST, Molex, TE Connectivity, Yazaki. See Mouser for some examples(https://www.mouser.com/c/connectors/automotive-connectors/#)

Usually they create their own design so maybe having an open standard would allow you to do contract orders with any plastic injector that has the molds.

[inferiorhuman]

Anyone really. If you look at the quick connect fittings commonly found on German cars they're all built to a standard (VDA not DIN in this case) but built by the NORMA Group or Parker.