The LEGO Group has done collectors a big favor by revealing some of their upcoming retirements on the LEGO Shop at Home Europe website, and the list contains a number of interesting sets. Included in the list are:
LEGO has also announced that the following products from the LEGO Ideas line will be retiring soon:
21108 Ghostbusters Ecto-1
21302 Big Bang Theory
21304 Dr. Who
Best Sets of These 2016 Retirements
At this point, many of these retirements have been expected and come as little surprise; 10218 Pet Shop is a prime example of a set for which retirement has long been anticipated. 10234 Sydney Opera House is probably more of a surprise to some people, and thus the post-retirement market supply is likely to be lower when compared to other sets. 10236 Ewok Village and 75059 Sandcrawler will both be solid purchases, as large Star Wars sets have historically been in high demand after they retire. The Sandcrawler was likely less expected by many to retire this year, and combined with its high price tag, it is likely in shorter supply than the Ewok Village.
As for the Ideas retirements, 21108 Ecto-1 has been available for over two years and is likely stockpiled in high quantities. The other three sets, 21302 Big Bang Theory, 21303 Wall-E, and 21304 Dr. Who have each been available for approximately one year, with Dr. Who having a slightly shorter lifespan than the other two sets. Of these three, it is quite possible that 21303 Wall-E will perform the best due to the overall high quality of the set, but Big Bang Theory and Dr. Who will both be sought after by fans of their respective TV shows.
Note that these announced retirements are just a handful of the sets that will be retired this year, and LEGO may still have some surprises in store for us!