It looks like the "Chinese New Year" idea might be a good one. I've had a few comments and private posts indicating that it's worth exploring, so now it's a case of determining the best way to continue with it.
One of the options I'm looking at involves resurrecting ideas about the mutant animal game, perhaps with characters trying to earn the favour of twelve immortal animal spirits according to the specific traits traditionally associated with these beasts. But that involves getting the mutant animal game finished first, at least to a level where these adventires make sense.
Another option would involve scenarios for FUBAR, perhaps a cycle of kung-fu adventures in a mysterious pseudo-Buddhist/Taoist/Confucian legendary realm. That game is certainly in a more ready state.
Otherwise maybe a set of dungeons or temples, but trying to make these system agnostic could be tricky. Go the OSR route, and make them generically compatible with some flavour of old D&D, or some easily accessible recent OSR format.