Well there you have it. The flood gates have been opened. Let your Forgotten Realms Self Published Material flood the gaming world. Today WoTC announced that anyone could being self publishing Here.
I wont go to in-depth as most everyone has already heard. Needless to say this is big news. With OGL rules now out and the SRD here as well. Content in the 5E universe is likely to explode very soon. A the moment everything is being restricted to the Forgotten Realms at least.
You can see their whole announcement here.
You can learn more about the OGL here.