MD/PhD or MD? The email was titled "Interview Follow-up Round 2", so I guess it's just similar to the first interview follow up email they sent. I just thought there might be a chance that it was indicative of decisions coming out given the time frame.
Edit: I looked back at the first email. They are identical except the second email doesn't contain this phrase: "Our Committee on Admissions will review your application in the context of the overall applicant pool. In mid-January we will send a status update email to each individual who has interviewed prior to that time, accepting a small number of candidates, declining some, and deferring a final decision on some."
Also, the second email states that the accepted open house will be April 11th rather than the vague late April or early May that the first email mentions.