Apple periodically makes announcements without an actual media event. If they are to do so, then it would be conceivable that would issue a press release right before Macworld.
It is unlikely that Apple would have an actual media event the week of Macworld or CES, particularly at an offsite facility.
Part of Apple's decision to quit attending tradeshows was to have total control of the event: venue, message, timing, etc.
There is no obligation for them to hold any media event in January. Early February is even less likely with the lunar new year (all of their Chinese manufacturing partners shut down for a couple of weeks).
That's a possible date, although it comes very quickly on the heels of CES. Of course, if there is one company that could sap energy and attention away from CES, it would be Apple.