Considering that the cast and crew were devastated and surprised the show was getting canceled and they had more story than yes,I can see how this is possible. They may have just had to rush to add a few sequences and the last portion of the Golb finale.
It was a mess as it stands alone.>>102750539
Samurai Jack has two go fund me pages for a new finale.
They should just fund it, but I know the logistics of such a fiasco would never get CN to release it.
We should just animate it ourselves.
One guy on youtube already did a better stroy board then Genndy.