" The only thing "special" about a "special" talk is that ...it never is special." 
True that ! I only once or twice in all the years I attended heard a "Special" talk that was well presented by a talented speaker, but even then the content was just a big nothing.
It will no doubt be the same with the "Special" Talk announced for September, but the timing of that makes me wonder if they are perhaps about to slip something in, a bit of "Noo Lite" ?
If those Talks are "special" what the actual f*** does that make the weekly ones ?
As per my Thread about "What Do They Have.... " The truth is they have no message, and nothing new to offer.