I has been served for several decades, however since the late-90's many decided reducing to only C and C++ was the way going forward, now the world is rediscovering it doesn't have to be like that.

They're are certainly going to be lots of languages because now with LLMs it's easier (trivial?) to make one + library (case in point: just within last month there're have been posted here ~20 new langs with codebases 20k~100k LOC) but don't really see them competing. Rust and Zig brought actual improvements and are basically replacing usecases that C++/C had limiting the space available to others.