Theresa May will unveil her 12-point plan for Brexit later this morning, she is expected to propose a "new and equal partnership" between an "independent, self-governing Global Britain" and its friends and allies in the EU.

In her clearest statement yet on Brexit, she will declare that she will seek: "Not partial membership of the European Union, associate membership of the European Union, or anything that leaves us half-in, half-out," according to leaks in the British press this morning.

But what's the latest road map for Brexit actually happening?

• January 17th 2017 (today) - Theresa May gives her long-awaited speech which will outline the UK's approach and goals as formal Brexit talks begin.

• January 2017 - Britain's Supreme Court is set to deliver its ruling on whether Theresa May has the power to trigger Article 50 - or whether it will need to be put to a parliamentary vote.

• March 31st 2017 - This is the deadline for Britain to formally trigger Article 50 and to tell the European Council that the UK will leave the EU.

• September 30th 2018 - The EU’s chief Brexit negotiator, Michel Barnier says that the final terms of the UK's exit will be agreed.

• March 31st 2019 - The date that Ms May says Brexit negotiations will be finished by.

• May 2019 - Britain is set to leave the Union.

It remains unclear what the Brexit process will look like as there is no precedent when a country has left the EU - and this timeline may stretch. The complicated nature of unraveling of more than 40 years of EU laws may prove to be a more complicated than it was initially expected to be.

Despite UK PM Theresa May's comments that she expects a deal to be reached within two years - the man who was one of the architects of the Maastricht and Lisbon treaties says that it could take up to 10 years.

Jean-Claude Piris, who was the head of the EU Council’s legal service between the late 80's and 2010, said that taking a decade to reach an agreement is, "Not the most pessimistic view because the most pessimistic view is that there will be no agreement at all."

"It will take years, that’s for sure. I don’t know how many years  [...] Some people say between four and eight years but that is if people have goodwill on both sides," he added.