It's a significant aircraft - Boeing has quietly produced a new wing, engines , and a myriad of evolutionary details drawn from Dreamliner technology.
Love those engine nacelles - less noise, more efficiency.
The wingtip is Boeing's answer to winglets (which for some reason they dislike) providing tip vortex control which reduces induced drag.
And significant because it has eaten all the A380's freighter orders.
Remains to be seen how the passenger version fares, I'd love to fly on it.