9. ... a. Eliminate keyword 'given'
That I can agree with. The rest of your proposals seem either unnecessary (because the facilities already exist in the language) or potentially problematic or almost without utility to me. Sorry. That's not to say you shouldn't suggest them all to p5p for further review of course - it's only the opinion of a humble monk after all.
9. ... b. ... Extend last to accept labels
I have good news: it already does
In reply to Re: What esteemed monks think about changes necessary/desirable in Perl 7 outside of OO stuff
in thread What esteemed monks think about changes necessary/desirable in Perl 7 outside of OO staff by likbez