Official: updated design of SpaceX's Big Falcon Ship and big announcement on September 17

SpaceX has posted image featuring an updated design of the 2nd stage of Big Falcon Rocket (BFR) - the Big Falcon Ship (BFS) - and informed that on Monday, September 17 at 18:00 PT there will be an announcement of the first Lunar BFR mission with a private passenger flying around the Moon. Full message from SpaceX here:

"SpaceX has signed the world’s first private passenger to fly around the Moon aboard our BFR launch vehicle - an important step toward enabling access for everyday people who dream of traveling to space. Only 24 humans have been to the Moon in history. No one has visited since the last Apollo mission in 1972. Find out who’s flying and why on Monday, September 17 at 6pm PT."

Evolution of the BFR design:

• Official schematics for larger ITS by Elon Musk at IAC 2016 (September 2016)
• Official schematics for BFR by Elon Musk at IAC 2017 (September 2017)
• Updated design for BFR by Gwynne Shotwell at TED 2018 (April 2018)

With every iteration the SpaceX "Mars rocket" looks more and more like your stereotypical rocket from the 1950s :)

Close-up of the Big Falcon Ship from the official image:

... and the full image with BFS orbiting the Moon (open link in new tab to view in full resolution):

Unofficial diagram for the updated design by Reddit user forteefly (open link in new tab to view in full resolution):