...
- possible syntax alignments for the new grammar
- decide if to make the new MOP for Groovy3, or only the grammar
- "true" named parameters
- traits
- stream / lazy / for comprehensions / generators (ex from Tim, http://blog.bloidonia.com/post/22117894718/groovy-stream-a-lazy-generator-and-list-comprehension)
- joint compilation with the Groovy Eclipse compiler
- also problem of reflection usage which seems to impact Gradle users
- pattern matching