Hi JonnyBfs!
The domestic & shorter city destinations (LBA-BFS/AMS/DUS/CDG NCL-ORK BFS-BLK etc) are usually the last to go on sale. Most of the traditional "bucket & spade" routes are on sale & the Italian / French destinations are being loaded.
As to dates: difficult to say with any certainty. The leisure routes went on sale much earlier than last year (now competing with TOM/TCX etc for holiday sales.) Whether they will feel the need to put the domestics on earlier who knows? These routes traditionally book later so maybe it will be a couple of months. That said - they could just as easily put them on sale tomorrow just to get the job done!!
Keep watchin the website (or here - someone usually posts when routes get launched.)