Future Liberal and NDP Coaltion (of the Permanent Sort)?

Looking at the latest polls of the Canadian federal election that have the Conservatives hovering around 40%,  the recently leftward-tilted Liberals at between 26-30% and  the permanently left-leaning NDP around 15%, it made me think.    If I were of the latter persuasion (which I am not),  I would seriously consider a permanent merger of the parties as it would likely put me into a majority government public support position.   If the Conservatives do indeed win a majority in this election,  look to a movement like this beginning.  They would change their name to something like the Liberal Democrats.   Of course, Liberals being what they are, the NDP will likely get screwed.  Depending on the strategic flavour and/or leader of the year, the Liberals sway left and right.  A devout social democratic/socialist would not be pleased by a right sway.   But what could they do?