Not really. Shoe patterns are made very specifically for the last that they will be lasted over.
Unless the new last is very similar both in shape, size and dimensions to the original, it would require a major rebuild---relasting, new insole, new outsole, etc., And even then the proportions are likely to end up strange.
i mean, i know that you are the local expert and all, but this is iroh we are talking about. he fixes socks and changes shirt colors. he may yet have another trick up his sleeve.