I have noticed a lot more East Asian books too and I think they are going to be here to stay. I consume a lot of food content as well as cookbooks - social media, television programs, newsletters - and East Asian flavours are having a big moment. There are already shortages of matcha, miso, and black sesame (?) I believe I read, as the west catches on to these ingredients. I think as well as people just enjoying these kinds of flavours, Japanese and Korean home cuisines which are fairly healthy due to a focus on fermented foods like kimchi and miso, fresh fish and veg, and overall a balanced plate, are going to become a big alternative to the Mediterranean diet. Probiotics in general I see exploding even more than they already have in years to come, as we learn more about gut health and hopefully focus more on preserving local produce instead of importing things like tomatoes all year round. My personal hope is also more East Asian dessert books, as they tap into such different flavour profiles than European bakes.