Sheffield and Glasgow did a great job of announcing in 1 this year, Ipswich also did a good job in announcing their 1-7 over a few weeks.
As long as you do a good job of it, either way seems perfectly fine.
You have Redcar and Belle Vue doing it in front of an audience at a supporters meet and I think that is pretty effective too especially to have some of the lads in attendance.
The drip feeding of news over the course of the winter is a bug bear of mind, that's probably a throw back to the Newport days when some years it felt we didn't know who would be there on PnP day though!