According to John Bercow (Speaker) it is possible for Theresa May to unilaterally cancel the debate/vote that was scheduled for tomorrow.
That being the case #Labour should have joined with other opposition parties to push for vote of no confidence in Tory govt.
Allowing more time for PM to renegotiate, allows May to "run down the clock". There will be no time left for alternatives. It'll be May deal or no deal. Cancel #Article50 possible but unlikely. #PeoplesVote is likely dead.