According to the LEGO Star Wars designer Hans Burkhard Schlömer (aka BrickCommander), the first wave of LEGO Rogue One: A Star Wars Story sets will be retiring before the end of 2017. The designer has revealed the news in the comment he left at the Brickset’s post :
Make sure you are not missing out on sets that have already been made, as the first wave of Rogue One is going to retire with the end of 2017 – including my TIE Striker and Krennic’s shuttle, to be replaced by SOMETHING BIG and SOMETHING EVEN MUCH, MUCH BIGGER 🙂
LEGO has released the Rogue One sets in October 2016. If LEGO retires those sets before the end of this year, those sets will only have one-year lifespan. This may indicate that new sets that based on the new Star Wars movies may have a shorter lifespan than their predecessors.
Sets that based on the original movies (Episodes 4 through 6) have a typical lifespan around 2.5 to 3 years. Current examples from this series include 75060 Slave I and 75095 TIE Fighter. However, with the annual release of Star Wars movies, the new LEGO Star Wars movie sets may follow the same pattern. Retiring the old sets early to make room for the new movie. In this instance, LEGO may retire the Rogue One sets to make room for The Last Jedi.
Star War fans and collectors who are planning to buy those sets should act quickly! Purchase the Rogue One sets before LEGO retires them.
The sets in the LEGO Star Wars Rogue One launch wave are:
Just in case if you wondering, the big and much bigger set Hans mentioned in his comment is properly the newly announced Millennium Falcon. This set is an updated version of 10179 Millennium Falcon set that Lego released back in 2007. The new and improved Lego Millennium Falcon includes 10 minifigs and highly-detailed interior sections. The new Millennium Falcon has 7,541 pieces. The price of the set is $799.99 and will be released on October 1, 2017. The LEGO Star Wars: The Last Jedi sets had launched on September 1, 2017. Star Wars: The Last Jedi is scheduled to release on December 15, 2017.
 What’s Missing? Rogue One: A Star Wars Story on BrickSet.com