Perl 6 should be renamed just to keep the namespace clear for Perl 5 improvements. The languages are too different both in structure and execution to be lumped together in this way.
In addition to Perl++ (my favorite) and Oystr I might suggest:
- Kopitiam (Bahasa Indonesia word for Cafe)
- Ambon (near Java but lots of pearls)
- Sulawesi ( ditto )
- Kopi (Bahasa Indonesia word for coffee)
The above note the fact that Perl6 runs on a VM and can run on the JVM.