We’ve had a couple of meetings about this (minutes are here and here ), we discussed the proposals and the goals with this work. We basically decided to punt on the question for another couple of months so we can concentrate on higher priority/more urgent things, and so we can discuss when we’re mostly all going to be in the same room.
Thanks for all the input, both proposals and discussions! We really appreciate it. In particular, I’d like to point out that all the ideas that we’re considering originated from the community in one way or another.
You can follow further developments in the tracking issue: https://github.com/rust-lang/rfcs/issues/349, and of course any future language changes will go through the RFC process and probably be posted on discuss too.