The announcement comes amid reports of "quite a lot of nervousness at Tory headquarters", suggests the Telegraph.
Many of Thursday's papers discuss US President Donald Trump's sharp exit from the Nato talks.
The Guardian's sketch writer jokes, "had it gone on for another day, nukes might have fired."
The London Bridge killer, Usman Khan, was categorised as "high risk" inmate, according to the Daily Telegraph.
The paper says he threatened senior prison staff early on and retained the high risk status throughout his sentence.
The Daily Mirror accuses the prime minister of being "Mr Greedy", Photoshopping his face onto the body of the children's book character.
The Mirror says Mr Johnson made £720,000 in outside earnings last year - more than any other MP.
Both the Mail and Daily Express round on Jeremy Corbyn after his apparent confusion in an ITV interview about the timing of the Queen's Christmas Day speech.
The Express says it is "speechless" after Mr Corbyn suggested that her address takes place in the morning, saying the exchange was "toe-curling."
The Guardian argues that if he misses her speech, he's in line with 90% of the population.
The Financial Times raises concerns about a shortage of judges in England and Wales. The paper says the High Court, which has more than 100 judges, needs another 10 and in recent years has rarely been fully staffed.
A government body examining the recruitment issue blamed the pensions, pay and conditions of judges. It revealed that a High Court judge was offered £80,000 less now than a decade ago.
Every paper pays tribute to Bob Willis - the former England cricket captain and commentator, who has died at the age of 70.
The Guardian and Daily Mirror call him the "hero of Headingley", while the Daily Express describes him as a "true legend".
The Telegraph says he was "a fierce competitor with a heart of gold."
A colleague at Sky, Nasser Hussain, tells the Mail that Bob Willis was nothing like his somewhat grumpy persona on TV. Instead, Hussain says he was a model professional, a fun loving person who was quite shy.
And finally several papers report on a piece of political memorabilia that is to go on display at the V&A Museum in London.
A grey Asprey handbag used by Margaret Thatcher while prime minister has been chosen as an exhibit.
A spokesman for the museum tells the Mail that Lady Thatcher's handbag was "essential to the image of the Iron Lady."