I'm hoping that itv will change and do a unique style as they did in 2012.
As for BBC One, I think I preferred the wrapping paper idents to last years. I think it's the music that makes them for me. Wrapping paper's music was very festive, the curtain was not. 2014 was the last great Christmas pres imo, gorgeous visuals and audio.
Christmas is an odd time, a lot of it hangs on tradition (family traditions, event traditions,Christmas songs, even certain adverts, e.g. Coca Cola trucks), yet there is much more where viewers and consumers demand change. There would be uproar if John Lewis released the same advert two years in a row nowadays.
Remember the backlash the BBC got when they did not provide a new Christmas ident in 2003 and just reused their 2002 package. I think they have learnt their lesson. Sadly BBC Two is a channel that is a hell of a mess, does not know what it is for, and thus their Christmas presentation is dreadful.
ITV and Channel 4 are just lazy. They are content of recycling their Christmas idents. ITV have always had poor track record of Christmas presentation. Their 2011 presentation was the worse, just the usual ITV1 idents with the Text Santa mascot sitting on the logo throwing Christmas lights on it etc. Google it and see how lazy it was, showing a summer ITV1 2011 ident with the Text Santa mascot on it.
Regarding ITV, yes they had a few years of no christmas idents, but some of the christmas pres they did do was just beautiful,
2008 (and 2009) saw the return to christmas pres with a single but lovely ident and matching pres package
Then 2010 saw another new lovely package
2011 was unfortunately disappointing with the Text Santa characters just added onto the normal idents, but then 2012 saw another beautiful package
Since 2013 its such a shame we haven't had any beautiful pres packages as seen above, but hopefully one day (possibly this year but doubtful) we will get a lovely new christmas look for the channel.
(Credit for images to The Ident Gallery)