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.