According to the Wikipedia article on Makoto Shinkai's Your Name:
Despite the praise he received, Makoto Shinkai insisted that the film is not as good as it could have been: "There are things we could not do, Masashi Ando [Director of animation] wanted to keep working [on] but had to stop us for lack of money ... For me it’s incomplete, unbalanced. The plot is fine but the film is not at all perfect. Two years was not enough.
Does anyone know how Shinkai planned to complete and balance the film?