According to a rumour revealed today, LEGO Ideas 21313 Ship in a Bottle and 21309 NASA Apollo Saturn V are about to be reissued shortly after being retired. Now, the LEGO Group has confirmed the news with a statement to LEGO Ambassadors:
The two sets are being re-launched due to popular demand, and as they had already left the market, we could not keep the original numbers. The agreements with the Fan Designers remain unchanged.
Also: one of the new set numbers matches a fan designer’s birthday. They were both very involved in the process.
These sets are being discussed as reissues, but in such instances small changes are sometimes made – usually as a result of certain elements being retired or replaced. That means that they may not be 100% identical to the original editions.