Remember that it was Jai that inspired all these new languages. When you talk about the capabilities like comptime, that's all from Jai and why John no longer does public presentations(as people keep stealing his unfinished ideas).
Your comment about gamedev focus makes no sense as that it the most hardcore segment of all the programming there is. So if a language is good for gamedev, it's good for everything else - with high performance.
I'm still in the GC camp with Go and don't see myself leaving any time soon but Zig is just rust-fugly and takes for ever to complete(it started 10 years ago, mind you). Odin is essentially complete, just lacks official spec. I like it but can' bring myself to use it as it lacks methods and I won' be going back to writing a procedural code like its 2002.
I'm curious to see Jai being released, despite having no use case for it. My initial post is merely about purposefulness, or the lack of, for named programming languages as nowadays John's name will carry more weight than Zig could ever have. so without Zig being 1.0 after a decade, and having no competitive advantage over Jai, it has no chance to survive after Jai is released. As I said, Odin will likely will as it is quite simpler, more niche language. Zig just goes directly against Jai and it will lose.