Adam Boulton and guests are on familiar territory this week as we await an outcome on talks about a post-Brexit trade deal between the UK and the European Union.'Major differences' remain, we're told, after a meeting between the Prime Minister and the European Commission President Ursula Von der Leyen in Brussels. They DID agree for their negotiators to continue discussions and for a 'firm decision' to be made by this Sunday whether a deal can be agreed.So what hope of a deal given the lack of optimism coming from both sides as we count down the days until the end of the transition period? And what can we expect from a no deal situation?Joining Adam this week are:the Director of the British Foreign Policy Group, Sophia Gaston; former Brexit Party MEP Martin Daubney; and Sky's chief political correspondent Jon Craig.