Globs are a remnant from non-lexical days and are going away in Perl6. However, many other things are happening; stuff like compile-time modification of the very language and real macros à la LISP come to mind, obviously, though in this case, they'll probably be overkill. Packages, classes, and modules will become first-level citizens in Perl6 (allowing stuff like anonymous packages), and there will probably be an elegant solution for your problem on that vector.
I really can't wait to get my hands on the thing. :-) It will no doubt be scary and uncomfortable at first and we'll make mistakes like they were made in Perl5 (inherit from Exporter? OO interface for Data::Dumper? what the..?), but there's exciting stuff ahead.
Makeshifts last the longest.