Likely Majority of Commons would back revoke/2ndRef rather than No deal.
Likely Majority ofCommons would back May's deal rather than No deal.
But both No dealers & Revoke/Referendum vastly outweigh people who want May's deal.
MPs are merely working out risk now.
The more no deal seems likely, the less hardlliners will give it up, but the more no deal becomes likely this will scare some remainers/soft leavers to back the deal.
In other words the situation is intrinsically unstable