Honu is from 2012. Its primary purpose at the time was to explore syntactic macros in languages with infix expressions. It was not explicitly about identifying

Honu is from 2012. Its primary purpose at the time was to explore syntactic macros in languages with infix expressions. It was not explicitly about identifying alternatives for Racket's future development, as far as I've been made aware. (I've talked about this paper with Matthew before.) It's also worth pointing out that Racket isn't going anywhere; it will always have parenthetical syntax. The future project being worked on is now called Rhombus to disambiguate it from Racket's past. Racket will not be replaced by Rhombus.