See that question has to do with the very nature of AbleOS. A lot of what makes AbleOS interesting is the HoleyBytes VM, which serves as a very low-level abstraction over the hardware. Any code written for AbleOS must go through HBVM. So will there be any other preexisting languages like C# or Python or Lua available for AbleOS development? No. Full Stop. We would have to re implement the language and it's runtime from scratch for it to be useful. And even if it were feasible, Able, our benevolent dictator, has expressed zero interest in it, and for better or for worse, his choices and preferences define the whole project.
Will there be other languages besides HBLang? Probably. I know @thebloomingflower is working on her own language to dev in. Any languages made for AbleOS will probably be made by the devs and will exists either on top of or beside HBLang. I wouldn't hold my breath for any new ones, most people are quite happy with HBLang.
Speaking of which, what's wrong with HBLang? It's a pretty unobtrusive language. It's expression based and has one of the most clear syntaxes i have used. If you're hoping for something higher-level, again that's a next decade thing. All useful programs at this stage are either going to be drivers or very thin abstractions over drivers.
