WotC has just announced that they are now including Fifth Edition under the OGL as well as introducing their Dungeon Master's Guild, a program for third-party creators to include WotC intellectual property (e.g. Forgotten Realms) in their products! The Fifth Ed. System Reference Document and a brief overview of what program covers what content can be found here. Hang distributors and retailers! Just as it happened back in the 90s, the deluge of material--some quality, some crap--will be racing its way to you soon enough.