The original perl7 plan never got past the RFC stage for multiple reasons.
The current intent is to get things like the new class syntax (plus a number of other features, the exact list of which escapes me right now) shaken out and stabilised and then release a perl7 where 'use v7;' gives you the new baseline set of features while still being able to be /usr/bin/perl without breaking e.g. the PostgreSQL and OpenSSL and etc. build systems.
The current intent is to get things like the new class syntax (plus a number of other features, the exact list of which escapes me right now) shaken out and stabilised and then release a perl7 where 'use v7;' gives you the new baseline set of features while still being able to be /usr/bin/perl without breaking e.g. the PostgreSQL and OpenSSL and etc. build systems.