Well, the Brexit party have topped a General Election poll for the first time, which suggest that Farage's party could win as many as
300 seats The Tories would be decimated...
https://www.theguardian.com/politic...arage-lead-opinion-poll-conservatives-opinium
Now, I doubt that the Brexit party would win as many as 300 seats in a GE, but I reckon that the Brexit party could comfortably score 100 seats unless the Tories unequivocally back a Hard Brexit, which is highly doubtful. Meanwhile, Labour are also facing a fundamental split for the same reason - Labour's self-confessed 'constructive ambiguity' on Brexit has, unsurprisingly, left people totally nonplussed and unable to understand what Labour actually want, let alone how they intend to actually deliver whatever it is they want.
The result is as predictable as it is ironic - the combined 'Remain/revoke' vote is now in danger of being split among four parties (Labour, a 'remainer'-led Tory party, the Lib Dems and the Greens) while, ironically, the Leave vote (which is fundamentally a more complex option) is being focused into a single party (the Brexit party)... that's quite a weird inversion, but this poll shows (scarily) that this could actually be happening.
@Biggles I didn't actually see your post before posting this, but I think it addresses most of your questions!