Emb- I feel like they're avoiding sending out a formal budget email simply because they realize that it leads to too much speculation, so instead they just sent out a general confirmation of dates and budgets.
Also, they did emphasize in the webinars that there's no "right" combination of language/internship/program, etc. and there's really not one language that's given preference over another. In essence it's the strength of your proposal as a whole and your ability to show the feasibility of you executing that plan.
I would agree that Mandarin and Arabic are the "top choices" simply because they are popular languages to learn these days, not because the Boren thinks they are more important than other languages or because they have more money dedicated to programs for these languages. Applicants are chosen and funding is given solely based on the overall package of your program plan, or at least that was my understanding based on all the webinar information.