Well, the 'races' in Van Richten aren't really races but lineages. So these are things that come on top of, or replace, any race that you have. If you've chosen a race that already has languages (which I think would be all of them); then you retain the languages of that race and don't get any new ones. Having said that I can add in a language feature bit since it won't complicate things any more than they already are.