A few more questions
# Maintenance costs & agility
You're not just building a programming language, you're also building an IDE, and now a version management system (through feature flags).
Each of these tasks are hard problems individually, what gives you the confidence that a small startup can build all of them? All of this while trying to make your company profitable.
# Ecosystem
If your language is not hosted, how do you plan on building an eco-system around it. (I know you come from a Clojure background so you've probably seen the wonders of being able to re-use Java's ecosystem).