It seems that the assumption is people who voted Leave have now been better informed and many will now vote to remain. Is this not possibly true vice versa?
Whilst I don't have evidence to support this, my guess is probably yes. I think the EU hasn't shown itself in a great light dealing with this process, and they haven't engaged and tried to understand what the problem was and reached out better to avoid a mess (whether they should have or not is another question - but I think they should have). They don't get/understand Brexit - and they've made no attempt to understand what led to it. Then there's the whole hard line their taking with Italy and problems in France etc - wouldn't surprise me if people had been turned off the concept!