Hard to say anything so black and white - the UK could still get an extension until 22 May if the vote passes early next week 2/
So the UK will have to make its mind up about European elections very soon, if no WA /3
1. Mobilise ERG and others to vote for WA 2) A serious government crisis that could lead to a general election /4
But May gov has habit of leaving until v last minute.
Could also expect morale-boosting EU27 summit for no-deal. /5
European elections (of course) and pledges of “sincere cooperation” i.e. UK vows not to hold EU 7-yr budget negs and EU top jobs hostage to Brexit. Big concern for France /7 and that's it.