It might change - but I suspect this will not happen before Perl6 arrives. The docs (or the camel book, I forget) explicitly say that the ONLY thing you can count on as far as hash-ordering goes, is that the ordering of
keys,
values and
each on a hash will be identical. - The changes you suggest will break that.
--
Joost downtime n. The period during which a system
is error-free and immune from user input.