It's more of a passionate side project at the moment, as I am still reverse engineering the protocols involved. It's not close to completion, but I'm hoping to have it done sometime in the next few months. It's not a high priority, as there are other ways to connect to Oracle.
My goal is to get rid of all the non-Go dependencies, which would (for the first time, ever) finally make it a reality to have a single, small binary that can connect to "every" database and that can be freely distributed. If you'd like to help, please feel free to start an implementation. While I'm not following a specific development routine for the native Oracle driver, I do have a repository with a bunch of (non-building) code that I made to assist with inspecting the raw protocol captures.