Related, are you aware of the JRuby+Truffle project [1]? Not a new high performance JVM language, but a high-performance implementation of Ruby using Truffle and Graal. On the surface it sounds extremely similar to Ruby+OMR (applying a high-performance, production-pedigree compiler/interpreter to an experimental Ruby implementation), so I'd be interested in hearing about any direct comparisons or knowledge-sharing between the two projects that might be possible.
I really enjoy meeting up with the JRuby+Truffle people whenever I can at conferences. Though our approaches are really different, there's definitely a cross-pollination of ideas: I've taken huge amounts of inspiration about what could be possible from Chris Seaton's PhD work which was on JRuby+Truffle.
