I think it could've been quite interesting. The ending of "Space Seed" had a lot of potential -- what could this band of superhumans build in a hundred years, given a whole world of their own and nobody to hold them back? That was the whole meaning of the title -- a seed had been planted and there was no telling what might grow from it. There were all sorts of possibilities there that could've been followed up on in the TNG era. But TWOK totally squandered that potential. Whatever one thinks of TWOK, that's a lost opportunity.