Little Big Planet was tricky. By including a full blown and very detailed level creator in the first game, it kind of made the need for future installments on the same platform irrelevant. I mean, adding new stuff is cool and all, but LBP2 could have just been an expansive DLC pack for LBP instead of a full game considering how little it did to truly add to the LBP formula in a meaningful capacity. Then we got LBP3, where the redundancy of LBP sequels became so obvious, they (the new developer) added in multiple playable characters to try to switch it up, but it ended up feeling even more unnecessary and tacked on.
Little Big Planet had too much going for it in the first game, effectively boxing itself in and preventing any kind of worthwhile growth that would warrant a new release. Respectable efforts were made, but I feel like Media Molecule realized this and it's why they chose to move on to something new and ambitious with Tearaway and now with Dreams. A new LBP every generation might be nice just to keep a solid platformer with an expansive level editor constantly available on the latest console, but multiple installments every generation is truly unnecessary and has likely ended all future efforts with the IP.
