The deferrals that went out last week were probably right on the edge of getting in, the ones that arrived this week were probably a little farther away. It is probably not bad news, ie rejection (but none have been reported yet and people were rejected last year and year before during EA), if you haven't heard anything yet. However, there have not been any acceptances after the first wave and there will probably not be anything more than a deferral from this point on. What hasn't gone out yet are the wait lists, so that could be where the people who haven't heard could fall (which might be ok). They are likely finished with or just about to finish the EA process and I would be surprised if any one goes decision after tomorrow night since the RD apps are starting to or will start to arrive next week.
RD applications, even for those people who are done with finals, probably won't have second semester grades for another month.