B) if you can't get a hold of them, or for some reason they demand it has to be OGL or nothing, you make your product, you attribute WotC for any SRD content you use off CC (they're the reason you can't trust the OGL, after all), you put your own stuff that you want to share on CC-BY or even CC-BY-SA. And for that OGC you wanted to use OGC, you use the OGL, designating everything not that OGC and not what you want to put out there for use Product Identity. Even in the highly improbable event that WotC decides to somehow try to kill the OGL again, whatever they do means nothing to the sub-license you have for that non-WotC OGC.