Quoted By:
Are there any new concepts left for original themes? I'm not talking about just original premises with new aesthetics or story, but unique ways to use the system in ways that it hasn't before.
Hidden Side took the standard transformation gimmick and used the concept of a- well, literal hidden side to ordinary things that turned them into monsters. Making wearable Lego that didn't fall off or come apart was a nightmare before Dots made it its main attraction. Even Ninjago started out with the novel idea of making Lego Beyblades.
There will always be a new coat of paint available for the theming, but how much space is there for innovating with the system? Where could they possibly take it where it hasn't gone before?