As far as I remember the last official status of 4.0 was the following:needed, what procedure needs to be used for that. Discussion with the
Software Freedom Consortium is going on but frankly the number of people
both willing to help with this and sufficiently knowledgeable of the
situation is so small that progress is exceedingly slow.
=========== The Short Version ===========
We are currently awaiting legal advice from the Software Freedom
Law Center [3]. It is recommended that you avoid contributing to the
relicensing effort pending further notice