The PM today re her deal: "Reject it and no-one knows what will happen. We may not leave the EU for many months. We may leave without the protections a deal provides, we may never leave at all."
So, all bases are covered.
"We may never leave at all" is an interesting take. The majority of MPs would like that outcome, and so would a majority of the electorate. If we had another referendum with all known facts before us: Remain / Leave a) Deal or b) No deal, Remain would win hands down.