The internet tends to lock things in. There were many languages dominant in history at some point or another, english will be the final one. There were many scripting languages, javascript will be the final one. Many networking protocols, TCP/IP the final one. Same for git. I think the only thing that might displace git is some environment for new programmers with its own version control system like glitch[1].

[1]: https://medium.com/glitch/reinventing-version-control-with-g...