I assume you've changed your mind about the other reasons for pursuing a solution without a tracing GC, that GCs have been a source of many hard to fix Nim issues, and that GCs don't play well with each other and you want Nim programs callable from other languages with their own runtimes, etc.
I don't follow the discussions on IRC or the videos, so this is a bit of a surprise to me. It seems like now you envision --newruntime as analogous to D's -betterC switch.
