Took some time this AM to check out some other site Q&As... I love this one at
SSG:
SSG: In the new Universe two-pack line, which includes Ahsoka and Vader from Rebels, they’re listed at $14.99. That’s a bit up from the current price point at $9.99. Will these figures be of a higher quality, or is it just that the $9.99 price point isn’t sustainable anymore?
JL: At Hasbro, we don’t always control what retail prices the figure’s at, so you’ll see some variation.
"Hey, your little sign says $15 for 2-packs - what's up with the $5 price hike?"
"we don't control prices"
Really?

The next significant event on the calender before that September 4th street date is the Disney D23 expo in Anaheim. That kicks off on Friday, August 14th. And I imagine if Disney/LFL licensing/Hasbro is going to reveal anything else, they would do it at that event since it's only 3 weeks before the street date.
I'm not buying D23 as an avenue for much news, though.
I haven't seen anything from Hasbro to indicate they'll be at the 2015 D23 Expo. No panel announcement, no booth announcement, nothing. The only thing D23 has said about Hasbro so far is that Hasbro will be sponsoring a Disney Trivial Pursuit contest/lounge.
Hasbro has been very open this year about when and where they will debut stuff. Before Toy Fair they told us there would be no TFA and to wait for some news at SDCC. If they were going to show stuff at D23, I think that would have been the mantra instead of "wait until you see Force Friday!"
For them to show up at D23 unannounced with a bunch of new TFA toys? That'd be a great way to anger a bunch of fan sites (you know who I mean, Nick) who aren't currently planning to be there.