I have high hopes for Odin. There has been a recent trend of C/C++ replacement languages like Zig,Rust,V, etc. with each one trying to find its niche and triumph over its competitors.
Odin's niche is the kind of high performance programming that's done in games and other real time visualization applications.
Other than fixing C's known issues, like having proper tagged unions, fixing macros, and the crazy compilation model among others, it has a bunch of features, that make it appeal to game programmers.
Features, such a structure of arrays support for data oriented design, builtin support for matrices, vectors, and shader-like syntax for 3D math, allocators and the like.
And it certainly doesn't hurt that unlike many of these upstart languages, Odin has a real, successful, commercial product built in it, EmberGen, which is used for CG smoke and flame simulations:
https://jangafx.com/software/embergen/