If he became leader of the Tory party and had some credible policies it would definitely tempt me back into the fold. I wouldn't want him to run on a ticket of having an amnesty for illegal immigrants, that would be a definitely be a no- no for me.
Yes. Boris is the sort of person who's likeable enough to make everyone unite behind him, and so if he were Prime Minister he could actually get things done. Trying to do what you think is necessary to sort the country out, even if it turns out not to work, is far preferable to doing nothing because of dissent within your own party.
He says he stands for traditional Tory values but I think he'd go straight to the centre-right of politics if he became PM. We need a Conservative PM that actually stands for the right of the party. Consensus politics is awful.
As a member of the Conservative party I'll see who stands for the next leadership election before I decide.