It's not hard to see why these sets are so popular. Wicked is a beloved franchise with a lot of adults who were first introduced to it as a Broadway musical. The new movies have only further emphasized that popularity and these sets are a new way for fans to enjoy something they already love. These two sets also represent a way for adults to play with LEGO bricks while still creating something functional they can use in their home. The bookends fall into the same category as the LEGO Book Nook sets released earlier this year and the Emerald City set joins the already popular line of LEGO Art sets that has been gaining traction in the AFOL (adult fans of LEGO) community.
These 18+ builds is a departure from what was produced from this LEGO and Wicked collaboration back in 2024. All five of the sets released alongside the first Wicked movie last year were playsets targeted more at kids than adults. The closest thing to an adult build from that previous release is the Elphaba & Glinda Figures set which is meant as a 10+ build. The move to more adult-targeted sets is hopefully an adjustment from LEGO to better reach a larger demographic that has a deeper love for the musical beyond just the new movies.