What next for Boris Johnson after he leaves Downing Street?

Speculation that former prime minister will seek a comeback after being ousted by Tory MPs

Boris Johnson was removed from the Conservative leadership after MPs tired of a string of scandals. AFP

Boris Johnson will hand the keys of 10 Downing Street to Liz Truss on Tuesday but is keeping people guessing about his next move, as speculation swirls that he is already plotting his comeback.

Mr Johnson is expected to leave the front benches for the time being and spend some time repairing his reportedly slapdash finances, with newspaper columns and the speaking circuit likely to prove lucrative.

“He wants to go and put hay in the loft — in other words build up his bank balance so that he can afford to pay for the lifestyle that he has created,” trade envoy Lord Jonathan Marland said.

There are rumours that Mr Johnson, his wife Carrie and their two young children will establish a new base in south London, even as Mr Johnson remains an MP in London’s western commuter belt.

But the question of whether his career on the front line of British politics is really over remains open.

Comeback plans?

It is almost 50 years since an ousted prime minister returned for a second spell in office, but Mr Johnson has a history of recovering from political setbacks.

He made no secret of the fact that he saw his removal by Tory MPs in July as an unjustified rush of blood and believed he had unfinished business as prime minister.

“I'd never say never on anything with Boris Johnson — anything is possible,” said his former chief of staff Lord Edward Lister.

Mr Johnson still has an inquiry hanging over him into whether he misled MPs over the Partygate scandal that contributed to his demise, and a separate inquiry into Britain’s coronavirus response could lead to further criticism.

But supporters of Mr Johnson say Tory MPs will miss his charismatic appeal, and his successor will quickly find themselves in difficult political waters as they navigate Britain’s winter energy crisis.

If the new leader crashes and the Tories lose the next election in 2024, a Johnson comeback to revive the party from opposition is a “distinct possibility”, Lord Marland told BBC's Newsnight.

Boris Johnson's last days in office — in pictures

Britain's Prime Minister Boris Johnson poses with Sea Cadets during a visit to BAE systems in Barrow-in-Furness. PA

Mr Johnson views an armed response vehicle during a visit with members of Thames Valley Police at Milton Keynes Police Station. Getty Images

Mr Johnson and Britain's Home Secretary Priti Patel meet newly-recruited officers at Milton Keynes Police Station. AFP

Mr Johnson and Ms Patel are shown the Critical Incident Desk during their visit with members of Thames Valley Police. AFP

Mr Johnson on the scene following a drugs-related raid by Metropolitan Police officers in West Norwood, London. AP

Mr Johnson with Stephen House, acting commissioner of the Metropolitan Police service, during a visit to a police station in London. Getty Images

Mr Johnson leaves the area following the raid in West Norwood. AP

Mr Johnson meets Vimala, a police horse, during a visit to a Metropolitan Police station in London. AFP

Mr Johnson gives a thumbs-up during a visit to Henbury Farm in north Dorset, where Wessex Internet are laying fibre optics. Getty Images

Mr Johnson and Culture Secretary Nadine Dorries in a mole plough during the visit to Henbury Farm. Getty Images

Mr Johnson and Ms Dorries sit in the cabin of the plough. PA

Backbench MP?

Mr Johnson’s predecessor, Theresa May, remained a constituency MP after leaving office in 2019 and has frequently needled the government from the back benches.

Another former Tory prime minister, Edward Heath, remained in the House of Commons for almost 30 years after leaving office, while Margaret Thatcher, John Major and David Cameron bowed out more quickly.

Mr Johnson could undoubtedly make life difficult for his successor if he chooses to intervene from the back benches, although he would have to defend his seat at the 2024 election — no sure thing if there is a large swing to Labour.

Mr Johnson said in his final major policy speech last week that “only time will tell” what kind of former prime minister he would be.

“My intention and what I certainly will do is give my full and unqualified support to whoever takes over from me … otherwise, ready to get on with life,” he said.

Boris Johnson is applauded by his wife Carrie, son Wilfred and staff after announcing his resignation in July. Photo: 10 Downing Street

Financial options

The twice-divorced Mr Johnson will be entitled to a regular MP’s salary of about £84,000 ($96,000) and receive security protection as a former prime minister, but is said to have complained to friends about the state of his finances.

Before becoming prime minister, Mr Johnson was paid £275,000 ($316,000) a year as a columnist for the Daily Telegraph and many expect that he will return to journalism once out of office.

A former correspondent in Brussels and editor of the Spectator magazine, Mr Johnson was also a regular public speaker and TV panellist during his earlier career.

Mrs May has earned as much as £127,000 ($146,000) for single post-prime ministerial speaking engagements, and Mr Johnson is likely to be more of a draw.

A memoir could also prove lucrative for Mr Johnson, whose earlier books on Winston Churchill, Ancient Rome and other subjects continue to bring in thousands of pounds a year in royalties.

Another suggestion floated after Mr Johnson’s resignation is that he could become a British special envoy to Ukraine, allowing him to maintain his personal friendship with the country’s President Volodymyr Zelenskyy.

And some Tory MPs have even called for Mr Johnson to become the next Secretary General of Nato when the position becomes vacant next year.