There will be answers, not everyone's gonna be thrilled about some of those answers... but there will be a semblance of new information provided.
My guess the more we learn the more questions we'll end up with rather then less. I can already see a few new hot topics arising and the episode hasn't even aired yet.
Numbers, numbers, 123, Four, Five, Six, Eight... 13 tribes Twelve Cylon Models...
Iblis is in the details