> I wonder how long until it gets split off into its own project

The submission is literally about them moving away from it in favor of Deno, so I think "never" probably gets pretty close.

Thanks for explaining - I didn't understand that this is what was being replaced.

Aside from the fact that the point of the announcement is that they're dropping it entirely, this "interpreter" is a hack that definitely is nowhere near capable of interpreting arbitrary JS. For example, the only use of `new` it handles is for Date objects, which it does by balancing parens to deduce the arguments for the call, then treating the entire group of arguments as a string and applying regexes to that.