I can't think of any legal reason you wouldn't be allowed to do it, but our policy is (for pretty obvious reasons) that any discussion of methods to circumvent license restrictions are banned, and I think this would qualify since it's a new kind of exporter.
Still I think your bigger problem will be the infeasability of the project! It's not for nothing we've held off native exporters. Even if you used a JS interpreter so you could re-use all the engine and plugin code, it still amounts to implementing a significant amount of a real browser engine. Several companies and projects have tried before and they were always pretty crap because it's a *much* larger project than you think, so they ended up skipping major features like Web Audio, form controls, networking etc. If you're going a step further and rewriting all the engine and plugin code in a very different language, then I am skeptical you will ever be able to run any meaningful C2 project.
So... good luck, I guess