I would assume that Eve Online has expanded and evolved so much since development started in the late 90s that migrating any significant part of the existing co

I would assume that Eve Online has expanded and evolved so much since development started in the late 90s that migrating any significant part of the existing code base to a different language is risky. Not only would you lose the existing, battle-tested code, but also the experience and institutional knowledge around the existing development environment and language.