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If the decision is between no deal and revocation (with the possibility of resubmission once the house is on order), I think revocation will pass.
As the weeks tick by this choice becomes the only option left. There is not and never has been a majority for hard Brexit in Parliament or the country. If May can string this out till the last moment it lessens the opportunity for Brexiteers to demand a re-negotiation or for Labour to turn it into a call for general election.
If the decision is between no deal and revocation (with the possibility of resubmission once the house is on order), I think revocation will pass.