Any successful fork of Bitcoin will still be Bitcoin. It would just be the majority of hashpower accepting a new and updated topology or architecture or whatever. To date, there have been a few attempts, but they never achieved a majority of the hashpower. The minority continue to mine BCH to this day for no other reason than to legitimize the duplicated coins that they created. They hilariously did so a second time with a fork of their own fork, further lining their pockets with duplicated BCH and called it something different, dumping on retail investors whenever they feel like it.