Considering the amount of animes Japan does produce, they could very probably train amazing AIs: they could assist in a significant way the creative process of such studios (look at digital corridor experiment).
Worth to try for a long time and maybe waste a lot of resources.
More than the anime production is that anime-fans are database animals — they catalogue anime to ridiculous degrees. Some of the best image training datasets were always the boorus; anime fans have basically been prepping for ML/AI since the 80s
Worth to try for a long time and maybe waste a lot of resources.