If Parliament had any balls and cared about the impact no deal will have, they should push for Article 50 revocation if the current deal and no deal are both voted down. Voting to extend Article 50 without a plan is not credible or a sensible option if there's no plan in place as to how that will be achieved, nor is it feasible if some/all of the red lines aren't dropped.
Michel Barnier has just said to AFP that although he's always available for further talks and clarifications, negotiations are between the British Government and the British Parliament.
(a kind way to say the British finally need to make up their mind).
It basically means that with just over 2 weeks to go and a lot of trying very hard, even harder, extremely hard and whatever superlatives you can still add to that, the same 3 choices on offer from the EU still are:
the current WA
a full reset to reconsider thoroughly what to do
Exactly as TM has always maintained too until the very moment she'd lost the meaningful vote and she suddenly opposed her own negotiated deal which she had labeled the only option apart from no deal or no brexit...
Meanwhile TM has just announced that the meaningful vote is still on for tomorrow, and as she's facing defeat in it, the likely outcome is that also a no deal will be voted off the table the next day, and then... the UK asks for an extension? Is there a majority for that in the house?
If so, I can see TM officially asking for the extension, while trying a third time to get the deal through somewhere in the second half of the month still, as the EU has already said it will only grand:
a short technical extension to get the WA through and the legislation in place for an orderly withdrawal
a long extension till the end of 2020 so it effectively moves Brexit out of the way for this year,
So in case the request to extend is made, I can see the EU start with offering the UK the short extension only, and then TM having to go back to the House saying that if they vote the WA down a third time, the extension will have to be made to last very long as an automatic consequence because that's the only thing she could get from the EU...
Maybe that can focus the minds of the die-hard brexiteers?