I've learned to take a lot of things with a heaping tablespoon of salt. There are no assurances on a 2nd season. But from what we've been told the odds are in our favor. 65/35 or so. I wouldn't be shocked if we weren't renewed, but, I would be a little surprised. The numbers weren't fantastic but were solid and increased throughout the episodes.
Since the marriage stuff I'm definitely more emotionally and financially invested in getting a 2nd season. Fingers crossed!