The tory party could yet become desperate enough to turn to Farage, but I think that would be too great a humiliation for them. I think they would have to get relegated to third place, but then where would Reform be then? If Reform did better then Farage wouldn't bother going to the tories, and if Reform did worse then why would the tories want Farage?
IMO the only reason for any kind of split to be occurring in the tory party is because they don't have a figurehead for their personality cult: success is more important than scruples for the conservatives. I think it's more likely that they'll go back to Boris than Farage (which I don't think is likely either, but it might happen if the tories are either relegated to third place, or their second place is approximately as good as third place).
Well, I probably should have said "Farageism" rather than Farage. It's not impossible they might end up with the man himself, but it's more that the party hasn't fully and single-mindedly embraced the racist xenophobic agenda. At least it hasn't yet. Hence their losing the votes of those who support that agenda to Reform.
And given the influence in the party of figures who clearly have interests that clash with that agenda (not least in their personally not being white, but also in terms of economic self-interests), I find it hard to imagine the Tories turning wholesale into the Reform Conservatives (or Conform, as one internet comment suggested they should be called). Johnson, I suppose, got the closest to squaring the circle, by papering over the divide with showmanship and lies, but those lies seem to have destroyed what little credibility he had, and without that I can't see how it can avoid a split.
I just can't see how they can keep the show on the road when they are so divided. The puzzle is how come the US Republicans are able to manage it.