These various discussions are moving along a bit too rapidly for me to keep up. We have been discussing language issues which are going to impact Python 3.0, either by deprecating current language constructs which can't be eliminated until then (e.g., the global statement) or by tossing around language construct ideas which will have to wait until then for their implementation (other mechanisms for variable access in outer scopes). Unfortunately, I'm afraid these things are going to get lost in the sea of other python-dev topics and be forgotten about then the time is ripe.
Maybe this would be a good time to create a firstname.lastname@example.org mailing list with more restrictions than python-dev (posting by members only? membership by invitation?) so we can more easily separate these ideas from shorter term issues and keep track of them in a separate Mailman archive. I'd suggest starting a Wiki, but that seems a bit too "global". You can restrict Wiki mods in MoinMoin to users who are logged in, but I'm not sure you can restrict signups very well.
I also think Guido wants to make a significant leap on his own at Python 3.0, but that is going to require a considerable amount of uninteruppted full-time available for that effort. Given that my 21-year old only recently fled the nest and my 20-year old keeps returning, I'd say Guido's going to have to wait for quite awhile for the "uninterrupted" qualifier to become unconditionally true. ;-) In the meantime, a mailing list archive or Wiki would provide a good place to keep notes which he could refer to.