Mrs May is set to make a bid to rally the party behind her in what is seen as possibly the most important speech of her political career, in which she will say that Britain's post-Brexit future is "full of promise".
In her speech, PM May is likely to will declare that the Conservatives can represent the "decent, moderate and patriotic" as she seeks to halt Johnson leadership challenge.
"If we all go off in different directions in pursuit of our own vision of the ideal Brexit, we risk ending up with no Brexit at all", she said in a clear nod to euroskeptic MPs who have published their alternatives plan for leaving the EU.
"The petition of concern is no longer available to us [DUP] and I am sure this will come to the floor in the Assembly and we need to allow the Assembly the space to debate this", she added.
"The British government can not unilaterally change the Good Friday Agreement and I don't believe the British government wants to do that, regardless of the commentary we have heard", the Foreign Affairs Minister insisted.
The prime minister will brush off weeks of Tory in-fighting over the Brexit negotiations with a speech titled "the future is in our hands".
She also tried to expand her domestic agenda, attacking the main opposition Labour Party by saying their policies, including the renationalization of mail, rail and utilities, would mean increased taxes and drive away business.
Labour Leader Jeremy Corbyn, she said, would "outsource our conscience to the Kremlin".
Save the Children upset at rape claim against ambassador Ronaldo
Mayorga's lawyers are to hold a news conference in Las Vegas at 3pm Pacific time (0000 GMT) on Wednesday to discuss the case. The Washington Post does not generally name alleged victims of sexual assault. "I am a happy man and all good".
May is urging her fractious Conservative Party to unite and help her seal a deal with the bloc. Forty-eight lawmakers would need to write such letters to trigger a vote of confidence in the leader.
Her spokesman declined to comment on Duddridge's move.
But she did her best to appear carefree as she sashayed on to the stage to Abba hit Dancing Queen and joked about the coughing fit and collapsing stage backdrop which marred her calamitous conference speech in Manchester past year.
Like last year's event - when a prankster presented her with a fake P45 on stage and then she lost her voice - Mrs May has a heavy cold, but aides insist she is up to putting on a show. "Firmness of goal, clarity and conviction - European Union friends do not underestimate!"
She said current EU proposals would effectively leave NI in the Custom's Union, unlike other parts of the UK.
The reprise of the dance steps from her recent African trip surprised not only Tory delegates and TV viewers but even her closest aides and husband Philip, as Mrs May had kept her plans secret.
■ On the Tory's conference app accidentally revealing MPs" numbers: "I know this conference is going to be a staggering success because just in the last couple of days about a dozen hard left Momentum activists have taken the trouble to ring my personal mobile phone and pledge their support'.