I've been feeling this since I started looking at the Black Series figures in stores. I'm seeing fewer and fewer PT-related things these days, and more and more OT-related things. Retro packaging on toys in the stores, giant OT vehicles, no more PT characters on the cards...
With the Rebels announcements and concept art and what not, as well as the material seen since then, including the amazing video Tobar links above, which has some great moments (that Ralph McQuarrie book looks incredible), it really came home that we've all made it out of our "Dark Times". The PT Era really is over.
I'm not sure what 1977 felt like, but it really must have been something like this. It's like going back in time to when Star Wars was just Star Wars.
It's a beautiful time to be a Star Wars fan, and, with the OT-focused mentality we're seeing from Disney, hopefully it stays that way.