Buckingham Palace has refused to deny reports that the Queen is delaying the recording of her Christmas speech until after a decision on a Brexit deal is reached.

The monarch usually films the annual address in early to mid December, but has reportedly pushed back the recording to next week due to uncertainty about the UK’s future relationship with the EU, after the deadline for a deal passed.

However, yet another deadline for trade negotiations with the bloc has now been missed, after both parties agreed “go the extra mile” on Sunday and resume talks in Brussels. While Boris Johnson downplayed expectations, telling ministers to prepare for a no-deal exit when the transition period ends in three weeks’ time, the European commission said that “progress has been made” and that “the next days will be important”.

A spokesperson for Buckingham Palace told the Guardian the reports, published in the Daily Mail, were “a load of speculation which we wouldn’t give any credibility to by commenting on. The filming date was set a number of weeks ago”.

The speech set out the new government’s domestic priorities, including sweeping changes to technical education and beefed-up plans for tackling domestic violence.

But a series of controversial proposals set out in the Conservative manifesto were absent from the speech, and from the list of 27 bills the government hopes to pass.

Plans to scrap free school meals, ration winter fuel payments for pensioners, repeal the Fixed-term Parliaments Act, and introduce what became widely known as the “dementia tax” for funding social care have been swept away by the election result.

The government also appears to be willing to go back to the drawing board on its changes of the school funding formula, after Conservative MPs raised concerns about looming cuts.

The spokesman was unable to say whether the government would stick to the Conservative manifesto pledge to “make sure no school has its budget cut as a result of the new formula” – a promise that was meant to be funded by scrapping free school lunches.

Grammar schools were not mentioned at all, despite the manifesto pledge to consult on opening new selective schools.