Its potential in Japan is huge for sure, especially when it already broke out in China and now most likely, South Korea. It is worth noting that these 2 Asian territories have a bad history of performance for Pixar films, but Coco has managed to break the status quo. Moreover, Coco has many elements that would most probably appeal to Japanese audience, especially when it shares some similar elements with Spirited Away (the highest grossing film ever in Japan). And it will also benefit from the post awards season boost and the almost locked Oscars win 2 weeks before its Japanese bow. Adding all these factors together, it seems like Coco's run in Japan is a breakout in the making. I wont rule out the possibility of $100m plus.