The Sheet Metal changes in 1966. So, a whole new body would need to be tooled up. I'm not sure what parts (if any) would carry over to the 1966-1967 car. Since it was a 2 year only body style, that would make a business case for new tooling a bit harder to justify.
But, one can always hope.
I also think a Ragtop or Four Door body might be possibilities for a future extension of the tooling. ( I'd prefer the 4 door Sedan, but I think the 'Vert would sell better)