[trollied]

No, it won’t imply ARM macOS. It’s obviously a distinct possibility, and I wouldn’t be surprised if they went that way one day. In fact, given release builds uploaded to Apple are basically just an intermediate llvm bitstream, Apple could theoretically release to any architecture.

[astrange]

llvm bitcode is a compiler IR and nothing else, it's not architecture-independent. There have been independent bytecodes based on it like PNaCL and SPIR-V, but they're not nearly good enough to run any old app on.