OK, I give up on my idea, hopefully some linguists would popup in here and link some articles that would explore the topic. I think it would be interesting to plug some rules into an algorithm and have it search for the optimal language. We would not force it as a main language but a secondary one, like when you make a movie or book you provide a translation in this language too on top of the other popular languages you support. Since is a simple and perfectly defined language from it you could auto-generate translation to less popular languages.