Yeah I just don't understand where the people saying it's going to be a January release are coming from (unless they're referring to the Public Release), especially since Caribdis has been consistently* releasing updates after a four-month dev cycle (and usually at the last week of the fourth month, at that). So unless something happens that would change that, we're going to see 0.5 on this site around Christmas...provided someone leaks it anyway (otherwise we're really going to have to wait until the first or second week of January at the latest for the Public Release).
*The only exception to this would be 0.2, which only had a 3 month dev cycle IIRC